./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX --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 622c401f4c26a108e7300950ecb35fd38383c28ce8e45cb77b8b1d59e26614ae --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:29:34,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:29:34,144 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:29:34,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:29:34,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:29:34,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:29:34,172 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:29:34,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:29:34,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:29:34,173 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:29:34,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:29:34,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:29:34,175 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:29:34,175 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:29:34,176 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:29:34,176 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:29:34,176 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:29:34,177 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:29:34,177 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:29:34,177 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:29:34,178 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:29:34,178 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:29:34,179 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:29:34,179 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:29:34,179 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:29:34,180 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:29:34,180 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:29:34,180 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:29:34,181 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:29:34,181 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:29:34,181 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:29:34,182 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:29:34,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:29:34,183 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:29:34,183 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:29:34,183 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:29:34,183 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:29:34,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:29:34,184 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:29:34,184 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:29:34,185 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:29:34,185 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:29:34,185 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 622c401f4c26a108e7300950ecb35fd38383c28ce8e45cb77b8b1d59e26614ae [2024-11-08 18:29:34,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:29:34,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:29:34,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:29:34,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:29:34,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:29:34,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-08 18:29:36,547 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:29:36,988 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:29:36,989 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i [2024-11-08 18:29:37,025 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/data/553750768/b01cb5d650a74844893ce16bfa488913/FLAG1b4651b82 [2024-11-08 18:29:37,134 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/data/553750768/b01cb5d650a74844893ce16bfa488913 [2024-11-08 18:29:37,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:29:37,139 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:29:37,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:29:37,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:29:37,149 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:29:37,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26625104 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:37, skipping insertion in model container [2024-11-08 18:29:37,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:29:37" (1/1) ... [2024-11-08 18:29:37,241 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:29:38,785 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_d9401c17-b021-49ad-a95f-1023ae3a9602/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i[72229,72242] [2024-11-08 18:29:39,313 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:627) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:3125) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:255) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1625) 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:792) 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:2578) 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:792) 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:792) 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:1520) 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:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) 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:3634) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1577) 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:1167) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1150) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1652) 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:3539) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2522) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:642) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:135) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:189) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:145) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 18:29:39,318 INFO L158 Benchmark]: Toolchain (without parser) took 2178.38ms. Allocated memory is still 157.3MB. Free memory was 122.0MB in the beginning and 113.0MB in the end (delta: 8.9MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-11-08 18:29:39,318 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:29:39,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2175.09ms. Allocated memory is still 157.3MB. Free memory was 121.5MB in the beginning and 113.0MB in the end (delta: 8.5MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2024-11-08 18:29:39,325 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 102.8MB. Free memory is still 57.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2175.09ms. Allocated memory is still 157.3MB. Free memory was 121.5MB in the beginning and 113.0MB in the end (delta: 8.5MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: 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:627) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX --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 622c401f4c26a108e7300950ecb35fd38383c28ce8e45cb77b8b1d59e26614ae --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:29:41,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:29:41,716 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 18:29:41,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:29:41,725 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:29:41,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:29:41,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:29:41,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:29:41,769 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:29:41,771 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:29:41,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:29:41,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:29:41,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:29:41,777 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:29:41,777 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:29:41,778 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:29:41,778 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:29:41,778 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:29:41,778 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:29:41,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:29:41,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:29:41,779 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:29:41,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:29:41,780 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:29:41,780 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:29:41,781 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:29:41,781 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:29:41,781 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:29:41,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:29:41,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:29:41,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:29:41,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:29:41,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:29:41,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:29:41,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:29:41,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:29:41,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:29:41,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:29:41,787 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:29:41,787 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:29:41,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:29:41,789 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:29:41,789 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:29:41,789 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:29:41,790 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 622c401f4c26a108e7300950ecb35fd38383c28ce8e45cb77b8b1d59e26614ae [2024-11-08 18:29:42,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:29:42,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:29:42,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:29:42,273 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:29:42,274 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:29:42,275 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i Unable to find full path for "g++" [2024-11-08 18:29:44,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:29:45,034 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:29:45,036 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i [2024-11-08 18:29:45,066 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/data/f4bde50c8/220bd86cacea49ee91184a5c868fd3eb/FLAGfee6d1de2 [2024-11-08 18:29:45,086 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/data/f4bde50c8/220bd86cacea49ee91184a5c868fd3eb [2024-11-08 18:29:45,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:29:45,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:29:45,094 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:29:45,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:29:45,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:29:45,103 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:29:45" (1/1) ... [2024-11-08 18:29:45,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73675c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:45, skipping insertion in model container [2024-11-08 18:29:45,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:29:45" (1/1) ... [2024-11-08 18:29:45,262 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:29:46,777 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_d9401c17-b021-49ad-a95f-1023ae3a9602/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i[72229,72242] [2024-11-08 18:29:47,320 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-08 18:29:47,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:29:47,408 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:29:47,511 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_d9401c17-b021-49ad-a95f-1023ae3a9602/sv-benchmarks/c/neural-networks/tanh_w16_r1_case_1_safe.c-amalgamation.i[72229,72242] [2024-11-08 18:29:47,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:29:48,083 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:29:48,083 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48 WrapperNode [2024-11-08 18:29:48,084 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:29:48,085 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:29:48,086 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:29:48,086 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:29:48,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,215 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,353 INFO L138 Inliner]: procedures = 780, calls = 2865, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 1048 [2024-11-08 18:29:48,361 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:29:48,362 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:29:48,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:29:48,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:29:48,391 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,411 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,454 INFO L175 MemorySlicer]: Split 745 memory accesses to 12 slices as follows [20, 2, 7, 11, 9, 2, 12, 11, 10, 515, 79, 67]. 69 percent of accesses are in the largest equivalence class. The 147 initializations are split as follows [16, 2, 7, 8, 8, 2, 8, 8, 8, 0, 48, 32]. The 548 writes are split as follows [3, 0, 0, 0, 0, 0, 0, 0, 0, 514, 14, 17]. [2024-11-08 18:29:48,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,553 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,570 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,591 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,604 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,634 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:29:48,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:29:48,635 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:29:48,638 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:29:48,639 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (1/1) ... [2024-11-08 18:29:48,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:29:48,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:29:48,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:29:48,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:29:48,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-08 18:29:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-08 18:29:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-08 18:29:48,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-08 18:29:48,716 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-08 18:29:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-08 18:29:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-11-08 18:29:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-11-08 18:29:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-11-08 18:29:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-11-08 18:29:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-11-08 18:29:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2024-11-08 18:29:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2024-11-08 18:29:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2024-11-08 18:29:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-08 18:29:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-08 18:29:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-11-08 18:29:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-11-08 18:29:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-11-08 18:29:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-11-08 18:29:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-11-08 18:29:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-11-08 18:29:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-11-08 18:29:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-11-08 18:29:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-11-08 18:29:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#11 [2024-11-08 18:29:48,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:29:48,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:29:48,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:29:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 18:29:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 18:29:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-08 18:29:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-08 18:29:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-08 18:29:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-08 18:29:48,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-08 18:29:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-08 18:29:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-08 18:29:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-08 18:29:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-08 18:29:48,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-08 18:29:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 18:29:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 18:29:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-08 18:29:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-08 18:29:48,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-08 18:29:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-08 18:29:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-08 18:29:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-08 18:29:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-08 18:29:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-08 18:29:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-08 18:29:48,724 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-08 18:29:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:29:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:29:48,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:29:48,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 18:29:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-08 18:29:48,727 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-08 18:29:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-08 18:29:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-08 18:29:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-08 18:29:48,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-08 18:29:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-08 18:29:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-08 18:29:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-08 18:29:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2024-11-08 18:29:48,729 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2024-11-08 18:29:48,729 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-08 18:29:48,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2024-11-08 18:29:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:29:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:29:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 18:29:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 18:29:48,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 18:29:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 18:29:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-08 18:29:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-11-08 18:29:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-11-08 18:29:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-11-08 18:29:48,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-11-08 18:29:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-11-08 18:29:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2024-11-08 18:29:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-08 18:29:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-08 18:29:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#2 [2024-11-08 18:29:48,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#3 [2024-11-08 18:29:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#4 [2024-11-08 18:29:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#5 [2024-11-08 18:29:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#6 [2024-11-08 18:29:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#7 [2024-11-08 18:29:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#8 [2024-11-08 18:29:48,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#9 [2024-11-08 18:29:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#10 [2024-11-08 18:29:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#11 [2024-11-08 18:29:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-08 18:29:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-08 18:29:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-08 18:29:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-08 18:29:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-08 18:29:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-08 18:29:48,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-11-08 18:29:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-11-08 18:29:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-11-08 18:29:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-11-08 18:29:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-11-08 18:29:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#11 [2024-11-08 18:29:48,735 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2024-11-08 18:29:48,736 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2024-11-08 18:29:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 18:29:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 18:29:48,736 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 18:29:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 18:29:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 18:29:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-08 18:29:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-11-08 18:29:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-11-08 18:29:48,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-11-08 18:29:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-11-08 18:29:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-11-08 18:29:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2024-11-08 18:29:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-08 18:29:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-08 18:29:48,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-08 18:29:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-08 18:29:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-08 18:29:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-08 18:29:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-11-08 18:29:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-11-08 18:29:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-11-08 18:29:48,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-11-08 18:29:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-11-08 18:29:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2024-11-08 18:29:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-08 18:29:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-08 18:29:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-08 18:29:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-08 18:29:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-08 18:29:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-08 18:29:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-08 18:29:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-08 18:29:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-08 18:29:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-08 18:29:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-08 18:29:48,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-08 18:29:49,185 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:29:49,188 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:30:11,056 INFO L? ?]: Removed 198 outVars from TransFormulas that were not future-live. [2024-11-08 18:30:11,056 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:30:11,078 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:30:11,079 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:30:11,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:30:11 BoogieIcfgContainer [2024-11-08 18:30:11,079 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:30:11,082 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:30:11,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:30:11,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:30:11,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:29:45" (1/3) ... [2024-11-08 18:30:11,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1578299a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:30:11, skipping insertion in model container [2024-11-08 18:30:11,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:29:48" (2/3) ... [2024-11-08 18:30:11,091 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1578299a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:30:11, skipping insertion in model container [2024-11-08 18:30:11,091 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:30:11" (3/3) ... [2024-11-08 18:30:11,093 INFO L112 eAbstractionObserver]: Analyzing ICFG tanh_w16_r1_case_1_safe.c-amalgamation.i [2024-11-08 18:30:11,112 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:30:11,113 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:30:11,208 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:30:11,215 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;@7ea71394, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:30:11,215 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:30:11,221 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) [2024-11-08 18:30:11,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 18:30:11,233 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:11,234 INFO L215 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] [2024-11-08 18:30:11,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:11,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:11,241 INFO L85 PathProgramCache]: Analyzing trace with hash 157123891, now seen corresponding path program 1 times [2024-11-08 18:30:11,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:30:11,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146841971] [2024-11-08 18:30:11,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:11,269 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:30:11,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:30:11,274 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:30:11,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-08 18:30:49,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:30:49,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 5761 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:30:49,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:30:49,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:30:49,608 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:30:49,609 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:30:49,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146841971] [2024-11-08 18:30:49,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146841971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:30:49,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:30:49,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:30:49,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326115671] [2024-11-08 18:30:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:30:49,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:30:49,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:30:49,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:30:49,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:30:49,642 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) [2024-11-08 18:30:49,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:30:49,699 INFO L93 Difference]: Finished difference Result 298 states and 442 transitions. [2024-11-08 18:30:49,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:30:49,702 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 [2024-11-08 18:30:49,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:30:49,711 INFO L225 Difference]: With dead ends: 298 [2024-11-08 18:30:49,711 INFO L226 Difference]: Without dead ends: 147 [2024-11-08 18:30:49,715 INFO L431 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 [2024-11-08 18:30:49,719 INFO L432 NwaCegarLoop]: 216 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, 216 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:30:49,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:30:49,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-08 18:30:49,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-08 18:30:49,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.4776119402985075) internal successors, (198), 134 states have internal predecessors, (198), 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) [2024-11-08 18:30:49,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 212 transitions. [2024-11-08 18:30:49,769 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 212 transitions. Word has length 35 [2024-11-08 18:30:49,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:30:49,770 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 212 transitions. [2024-11-08 18:30:49,770 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) [2024-11-08 18:30:49,770 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 212 transitions. [2024-11-08 18:30:49,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 18:30:49,771 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:30:49,772 INFO L215 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] [2024-11-08 18:30:49,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:30:49,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:30:49,973 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:30:49,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:30:49,973 INFO L85 PathProgramCache]: Analyzing trace with hash -433661521, now seen corresponding path program 1 times [2024-11-08 18:30:49,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:30:49,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794655321] [2024-11-08 18:30:49,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:30:49,986 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:30:49,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:30:49,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:30:49,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-08 18:31:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:31:31,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 5761 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:31:31,398 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:31:31,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:31:31,976 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:31:31,976 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:31:31,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [794655321] [2024-11-08 18:31:31,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [794655321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:31:31,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:31:31,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:31:31,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048981735] [2024-11-08 18:31:31,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:31:31,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:31:31,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:31:31,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:31:31,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:31:31,982 INFO L87 Difference]: Start difference. First operand 147 states and 212 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) [2024-11-08 18:31:32,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:31:32,257 INFO L93 Difference]: Finished difference Result 158 states and 225 transitions. [2024-11-08 18:31:32,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:31:32,260 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 [2024-11-08 18:31:32,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:31:32,263 INFO L225 Difference]: With dead ends: 158 [2024-11-08 18:31:32,263 INFO L226 Difference]: Without dead ends: 137 [2024-11-08 18:31:32,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:31:32,265 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 19 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 816 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 [2024-11-08 18:31:32,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 816 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:31:32,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-08 18:31:32,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2024-11-08 18:31:32,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 125 states have (on average 1.464) internal successors, (183), 125 states have internal predecessors, (183), 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) [2024-11-08 18:31:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 195 transitions. [2024-11-08 18:31:32,291 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 195 transitions. Word has length 35 [2024-11-08 18:31:32,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:31:32,292 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 195 transitions. [2024-11-08 18:31:32,292 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) [2024-11-08 18:31:32,292 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 195 transitions. [2024-11-08 18:31:32,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-08 18:31:32,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:31:32,293 INFO L215 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] [2024-11-08 18:31:32,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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 [2024-11-08 18:31:32,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:31:32,494 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:31:32,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:31:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1506559350, now seen corresponding path program 1 times [2024-11-08 18:31:32,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:31:32,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582068378] [2024-11-08 18:31:32,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:31:32,501 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:31:32,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:31:32,515 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:31:32,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-08 18:32:13,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:32:13,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 5761 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 18:32:13,747 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:32:16,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:32:16,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:32:16,470 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:32:16,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582068378] [2024-11-08 18:32:16,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582068378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:32:16,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:32:16,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:32:16,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339888578] [2024-11-08 18:32:16,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:32:16,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:32:16,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:32:16,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:32:16,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:32:16,474 INFO L87 Difference]: Start difference. First operand 137 states and 195 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) [2024-11-08 18:32:20,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:32:24,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:32:28,530 WARN L539 Checker$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] [2024-11-08 18:32:32,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:32:37,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:32:41,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:32:46,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.68s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:32:50,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 18:32:55,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-08 18:32:59,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:32:59,420 INFO L93 Difference]: Finished difference Result 158 states and 224 transitions. [2024-11-08 18:32:59,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:32:59,423 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 [2024-11-08 18:32:59,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:32:59,425 INFO L225 Difference]: With dead ends: 158 [2024-11-08 18:32:59,425 INFO L226 Difference]: Without dead ends: 146 [2024-11-08 18:32:59,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:32:59,427 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 231 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 4 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 849 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:32:59,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 849 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 85 Invalid, 9 Unknown, 0 Unchecked, 42.9s Time] [2024-11-08 18:32:59,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-08 18:32:59,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 139. [2024-11-08 18:32:59,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 127 states have (on average 1.4566929133858268) internal successors, (185), 127 states have internal predecessors, (185), 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) [2024-11-08 18:32:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 197 transitions. [2024-11-08 18:32:59,451 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 197 transitions. Word has length 35 [2024-11-08 18:32:59,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:32:59,452 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 197 transitions. [2024-11-08 18:32:59,452 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) [2024-11-08 18:32:59,452 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 197 transitions. [2024-11-08 18:32:59,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-08 18:32:59,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:32:59,455 INFO L215 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] [2024-11-08 18:32:59,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-08 18:32:59,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:32:59,656 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:32:59,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:32:59,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1132849616, now seen corresponding path program 1 times [2024-11-08 18:32:59,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:32:59,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152040060] [2024-11-08 18:32:59,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:32:59,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:32:59,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:32:59,665 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:32:59,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-08 18:33:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:33:41,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 5951 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:33:41,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:33:56,196 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:33:56,196 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:34:09,541 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:09,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152040060] [2024-11-08 18:34:09,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152040060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:34:09,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844783202] [2024-11-08 18:34:09,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:09,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:09,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:09,544 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:34:09,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:34:45,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:45,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 5951 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 18:34:45,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:34:46,895 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:46,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844783202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:46,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:34:46,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2024-11-08 18:34:46,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544737398] [2024-11-08 18:34:46,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:46,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:34:46,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:46,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:34:46,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:34:46,898 INFO L87 Difference]: Start difference. First operand 139 states and 197 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) [2024-11-08 18:34:47,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:47,121 INFO L93 Difference]: Finished difference Result 258 states and 372 transitions. [2024-11-08 18:34:47,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:34:47,122 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 [2024-11-08 18:34:47,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:47,124 INFO L225 Difference]: With dead ends: 258 [2024-11-08 18:34:47,124 INFO L226 Difference]: Without dead ends: 147 [2024-11-08 18:34:47,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 161 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2024-11-08 18:34:47,127 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 4 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 390 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 [2024-11-08 18:34:47,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 390 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:34:47,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-08 18:34:47,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2024-11-08 18:34:47,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 134 states have (on average 1.4477611940298507) internal successors, (194), 134 states have internal predecessors, (194), 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) [2024-11-08 18:34:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 208 transitions. [2024-11-08 18:34:47,153 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 208 transitions. Word has length 81 [2024-11-08 18:34:47,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:47,153 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 208 transitions. [2024-11-08 18:34:47,154 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) [2024-11-08 18:34:47,154 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 208 transitions. [2024-11-08 18:34:47,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-08 18:34:47,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:47,157 INFO L215 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] [2024-11-08 18:34:47,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-08 18:34:47,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:47,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:47,558 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:34:47,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:47,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1430503581, now seen corresponding path program 1 times [2024-11-08 18:34:47,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:47,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969330586] [2024-11-08 18:34:47,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:47,563 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:34:47,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:34:47,566 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:34:47,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-08 18:35:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:35:30,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 5954 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:35:30,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:35:45,644 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:35:45,645 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:35:59,662 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:35:59,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969330586] [2024-11-08 18:35:59,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969330586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:35:59,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [507410090] [2024-11-08 18:35:59,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:35:59,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:35:59,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:35:59,665 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:35:59,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 18:36:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:36:41,539 INFO L255 TraceCheckSpWp]: Trace formula consists of 5954 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:36:41,543 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:36:53,990 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:36:53,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:37:11,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:37:11,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [507410090] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:37:11,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:37:11,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-11-08 18:37:11,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777169434] [2024-11-08 18:37:11,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:37:11,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:37:11,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:37:11,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:37:11,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 18:37:11,947 INFO L87 Difference]: Start difference. First operand 147 states and 208 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) [2024-11-08 18:37:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:37:19,805 INFO L93 Difference]: Finished difference Result 184 states and 261 transitions. [2024-11-08 18:37:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:37:19,809 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 [2024-11-08 18:37:19,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:37:19,812 INFO L225 Difference]: With dead ends: 184 [2024-11-08 18:37:19,813 INFO L226 Difference]: Without dead ends: 143 [2024-11-08 18:37:19,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 238 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 18:37:19,815 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 240 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-08 18:37:19,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 1041 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-08 18:37:19,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-08 18:37:19,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-08 18:37:19,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 130 states have (on average 1.4384615384615385) internal successors, (187), 130 states have internal predecessors, (187), 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) [2024-11-08 18:37:19,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 201 transitions. [2024-11-08 18:37:19,844 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 201 transitions. Word has length 83 [2024-11-08 18:37:19,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:37:19,845 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 201 transitions. [2024-11-08 18:37:19,845 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) [2024-11-08 18:37:19,846 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 201 transitions. [2024-11-08 18:37:19,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 18:37:19,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:19,848 INFO L215 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] [2024-11-08 18:37:19,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:20,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 18:37:20,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:37:20,249 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:37:20,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:20,250 INFO L85 PathProgramCache]: Analyzing trace with hash -2083478077, now seen corresponding path program 1 times [2024-11-08 18:37:20,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:20,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971071478] [2024-11-08 18:37:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:20,256 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:37:20,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:37:20,260 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:37:20,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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 (9)] Waiting until timeout for monitored process [2024-11-08 18:38:08,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:38:08,765 INFO L255 TraceCheckSpWp]: Trace formula consists of 5955 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:38:08,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:38:24,151 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:38:24,151 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:38:38,348 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:38:38,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971071478] [2024-11-08 18:38:38,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971071478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:38:38,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116290050] [2024-11-08 18:38:38,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:38:38,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:38:38,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:38:38,351 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:38:38,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 18:39:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:39:21,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 5955 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:39:21,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:39:33,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:39:33,781 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:39:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:39:50,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116290050] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:39:50,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:39:50,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-11-08 18:39:50,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451128947] [2024-11-08 18:39:50,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:39:50,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:39:50,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:39:50,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:39:50,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 18:39:50,519 INFO L87 Difference]: Start difference. First operand 143 states and 201 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) [2024-11-08 18:39:57,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:39:57,342 INFO L93 Difference]: Finished difference Result 180 states and 254 transitions. [2024-11-08 18:39:57,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:39:57,346 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 [2024-11-08 18:39:57,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:39:57,347 INFO L225 Difference]: With dead ends: 180 [2024-11-08 18:39:57,347 INFO L226 Difference]: Without dead ends: 139 [2024-11-08 18:39:57,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 241 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 18:39:57,349 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 233 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:39:57,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 1000 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-08 18:39:57,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-08 18:39:57,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-08 18:39:57,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 126 states have (on average 1.4285714285714286) internal successors, (180), 126 states have internal predecessors, (180), 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) [2024-11-08 18:39:57,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 194 transitions. [2024-11-08 18:39:57,367 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 194 transitions. Word has length 84 [2024-11-08 18:39:57,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:39:57,367 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 194 transitions. [2024-11-08 18:39:57,368 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) [2024-11-08 18:39:57,368 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 194 transitions. [2024-11-08 18:39:57,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-08 18:39:57,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:39:57,370 INFO L215 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] [2024-11-08 18:39:57,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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 (9)] Forceful destruction successful, exit code 0 [2024-11-08 18:39:57,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 18:39:57,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:39:57,771 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:39:57,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:39:57,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1653997505, now seen corresponding path program 1 times [2024-11-08 18:39:57,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:39:57,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413383038] [2024-11-08 18:39:57,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:39:57,775 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:39:57,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:39:57,777 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:39:57,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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)] Waiting until timeout for monitored process [2024-11-08 18:40:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:40:41,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 5957 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:40:41,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:40:58,450 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:40:58,451 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:41:12,738 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:41:12,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413383038] [2024-11-08 18:41:12,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413383038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:41:12,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213021158] [2024-11-08 18:41:12,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:41:12,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:41:12,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:41:12,740 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:41:12,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 18:41:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:41:51,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 5957 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 18:41:51,819 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:42:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:42:04,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:42:20,725 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:42:20,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213021158] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:42:20,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:42:20,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 7] total 25 [2024-11-08 18:42:20,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007698439] [2024-11-08 18:42:20,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:20,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:42:20,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:42:20,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:42:20,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-08 18:42:20,728 INFO L87 Difference]: Start difference. First operand 139 states and 194 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) [2024-11-08 18:42:27,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:42:27,287 INFO L93 Difference]: Finished difference Result 176 states and 247 transitions. [2024-11-08 18:42:27,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:42:27,290 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 [2024-11-08 18:42:27,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:42:27,292 INFO L225 Difference]: With dead ends: 176 [2024-11-08 18:42:27,292 INFO L226 Difference]: Without dead ends: 135 [2024-11-08 18:42:27,293 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 247 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 24.1s TimeCoverageRelationStatistics Valid=124, Invalid=998, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 18:42:27,293 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 226 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:42:27,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 959 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-08 18:42:27,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-08 18:42:27,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2024-11-08 18:42:27,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 122 states have (on average 1.4180327868852458) internal successors, (173), 122 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) [2024-11-08 18:42:27,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 187 transitions. [2024-11-08 18:42:27,313 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 187 transitions. Word has length 86 [2024-11-08 18:42:27,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:42:27,314 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 187 transitions. [2024-11-08 18:42:27,314 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) [2024-11-08 18:42:27,314 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 187 transitions. [2024-11-08 18:42:27,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 18:42:27,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:42:27,316 INFO L215 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] [2024-11-08 18:42:27,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-08 18:42:27,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:42:27,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:42:27,718 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:42:27,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:27,718 INFO L85 PathProgramCache]: Analyzing trace with hash 2056140539, now seen corresponding path program 1 times [2024-11-08 18:42:27,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:42:27,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419556166] [2024-11-08 18:42:27,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:27,722 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:42:27,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:42:27,723 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:42:27,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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)] Waiting until timeout for monitored process [2024-11-08 18:43:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:10,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 5958 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-08 18:43:10,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:26,553 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:26,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:40,745 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:43:40,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419556166] [2024-11-08 18:43:40,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419556166] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:40,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898510655] [2024-11-08 18:43:40,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:40,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:40,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:40,748 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:40,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 18:44:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:44:20,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 5958 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:44:20,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:44:23,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:44:23,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:44:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-08 18:44:28,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898510655] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 18:44:28,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 18:44:28,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13, 5] total 18 [2024-11-08 18:44:28,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310251535] [2024-11-08 18:44:28,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:44:28,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:44:28,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:44:28,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:44:28,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:44:28,757 INFO L87 Difference]: Start difference. First operand 135 states and 187 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:44:29,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:44:29,175 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2024-11-08 18:44:29,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:44:29,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 87 [2024-11-08 18:44:29,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:44:29,177 INFO L225 Difference]: With dead ends: 142 [2024-11-08 18:44:29,177 INFO L226 Difference]: Without dead ends: 124 [2024-11-08 18:44:29,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:44:29,178 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 22 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:44:29,178 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 513 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 18:44:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-08 18:44:29,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-11-08 18:44:29,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.4017857142857142) internal successors, (157), 112 states have internal predecessors, (157), 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) [2024-11-08 18:44:29,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 169 transitions. [2024-11-08 18:44:29,194 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 169 transitions. Word has length 87 [2024-11-08 18:44:29,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:44:29,195 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 169 transitions. [2024-11-08 18:44:29,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 18:44:29,195 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 169 transitions. [2024-11-08 18:44:29,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-08 18:44:29,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:44:29,196 INFO L215 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] [2024-11-08 18:44:29,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 18:44:29,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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)] Forceful destruction successful, exit code 0 [2024-11-08 18:44:29,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:44:29,597 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:44:29,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:44:29,597 INFO L85 PathProgramCache]: Analyzing trace with hash -566936677, now seen corresponding path program 1 times [2024-11-08 18:44:29,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:44:29,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1916090520] [2024-11-08 18:44:29,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:44:29,601 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-08 18:44:29,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 18:44:29,602 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-08 18:44:29,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9401c17-b021-49ad-a95f-1023ae3a9602/bin/uautomizer-verify-jihMAELWvX/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 (15)] Waiting until timeout for monitored process