./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ef18cb99015e3862bc412bba0236f0b81e1a322b85b5352db3e49d7e6440079 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:54:28,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:54:29,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:54:29,057 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:54:29,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:54:29,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:54:29,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:54:29,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:54:29,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:54:29,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:54:29,094 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:54:29,094 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:54:29,095 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:54:29,096 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:54:29,096 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:54:29,097 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:54:29,098 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:54:29,098 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:54:29,099 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:54:29,099 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:54:29,100 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:54:29,101 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:54:29,102 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:54:29,103 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:54:29,103 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:54:29,104 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:54:29,104 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:54:29,105 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:54:29,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:54:29,106 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:54:29,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:54:29,107 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:54:29,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:54:29,108 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:54:29,108 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:54:29,108 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:54:29,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:54:29,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:54:29,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:54:29,110 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:54:29,110 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:54:29,110 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:54:29,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:54:29,111 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:54:29,111 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:54:29,111 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:54:29,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:54:29,112 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef18cb99015e3862bc412bba0236f0b81e1a322b85b5352db3e49d7e6440079 [2023-12-02 13:54:29,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:54:29,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:54:29,428 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:54:29,429 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:54:29,430 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:54:29,431 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i [2023-12-02 13:54:32,817 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:54:33,168 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:54:33,169 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i [2023-12-02 13:54:33,196 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/data/425854b4a/c261be75b0e548c58944d9ccde6adb54/FLAGcea95fe26 [2023-12-02 13:54:33,209 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/data/425854b4a/c261be75b0e548c58944d9ccde6adb54 [2023-12-02 13:54:33,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:54:33,214 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:54:33,215 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:54:33,215 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:54:33,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:54:33,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:54:33" (1/1) ... [2023-12-02 13:54:33,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43b6ae30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:33, skipping insertion in model container [2023-12-02 13:54:33,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:54:33" (1/1) ... [2023-12-02 13:54:33,324 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:54:34,211 WARN L240 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_1094684b-ab8a-4cdc-b970-5c51c50084fd/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i[72204,72217] [2023-12-02 13:54:34,564 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:610) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:2220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:245) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1486) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:269) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2499) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:305) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:284) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1427) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:222) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleLoops(CHandler.java:3572) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1469) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:225) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.handleCompoundStatement(CHandler.java:1088) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1073) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:386) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1512) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:157) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3421) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2441) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:611) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:133) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:191) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:147) 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) [2023-12-02 13:54:34,583 INFO L158 Benchmark]: Toolchain (without parser) took 1369.31ms. Allocated memory is still 138.4MB. Free memory was 94.5MB in the beginning and 100.6MB in the end (delta: -6.1MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2023-12-02 13:54:34,584 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:54:34,584 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1367.14ms. Allocated memory is still 138.4MB. Free memory was 93.8MB in the beginning and 100.6MB in the end (delta: -6.7MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2023-12-02 13:54:34,585 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 104.9MB. Free memory is still 56.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1367.14ms. Allocated memory is still 138.4MB. Free memory was 93.8MB in the beginning and 100.6MB in the end (delta: -6.7MB). Peak memory consumption was 58.1MB. 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:610) 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_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ef18cb99015e3862bc412bba0236f0b81e1a322b85b5352db3e49d7e6440079 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:54:36,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:54:36,359 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 13:54:36,366 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:54:36,367 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:54:36,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:54:36,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:54:36,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:54:36,400 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:54:36,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:54:36,401 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:54:36,402 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:54:36,402 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:54:36,403 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:54:36,403 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:54:36,404 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:54:36,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:54:36,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:54:36,406 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:54:36,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:54:36,407 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:54:36,408 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:54:36,408 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:54:36,409 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:54:36,409 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:54:36,409 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:54:36,410 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:54:36,410 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:54:36,411 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:54:36,411 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:54:36,412 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:54:36,412 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:54:36,412 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:54:36,412 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:54:36,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:54:36,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:54:36,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:54:36,413 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:54:36,414 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:54:36,414 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:54:36,414 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:54:36,414 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:54:36,415 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:54:36,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:54:36,415 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ef18cb99015e3862bc412bba0236f0b81e1a322b85b5352db3e49d7e6440079 [2023-12-02 13:54:36,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:54:36,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:54:36,719 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:54:36,720 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:54:36,720 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:54:36,722 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i [2023-12-02 13:54:40,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:54:40,697 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:54:40,697 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i [2023-12-02 13:54:40,729 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/data/c17806485/4d6d7bf15baf495e829cf9b9bd7e64d4/FLAG01a2f4e0c [2023-12-02 13:54:40,745 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/data/c17806485/4d6d7bf15baf495e829cf9b9bd7e64d4 [2023-12-02 13:54:40,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:54:40,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:54:40,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:54:40,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:54:40,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:54:40,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:54:40" (1/1) ... [2023-12-02 13:54:40,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5b7c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:40, skipping insertion in model container [2023-12-02 13:54:40,761 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:54:40" (1/1) ... [2023-12-02 13:54:40,853 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:54:41,985 WARN L240 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_1094684b-ab8a-4cdc-b970-5c51c50084fd/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i[72204,72217] [2023-12-02 13:54:42,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:54:42,542 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 13:54:42,579 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:54:42,614 WARN L240 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_1094684b-ab8a-4cdc-b970-5c51c50084fd/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i[72204,72217] [2023-12-02 13:54:42,808 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:54:42,816 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:54:42,867 WARN L240 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_1094684b-ab8a-4cdc-b970-5c51c50084fd/sv-benchmarks/c/neural-networks/tanh_w16_r4_case_1_safe.c-amalgamation.i[72204,72217] [2023-12-02 13:54:43,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:54:43,347 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:54:43,347 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:54:43,348 WARN L675 CHandler]: The function feof is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:54:43,348 WARN L675 CHandler]: The function recurrent_activation is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:54:43,348 WARN L675 CHandler]: The function output_activation is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 13:54:43,354 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:54:43,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43 WrapperNode [2023-12-02 13:54:43,355 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:54:43,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:54:43,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:54:43,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:54:43,361 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,543 INFO L138 Inliner]: procedures = 780, calls = 2643, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 961 [2023-12-02 13:54:43,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:54:43,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:54:43,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:54:43,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:54:43,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,567 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,640 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,649 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,668 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,683 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:54:43,684 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:54:43,684 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:54:43,684 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:54:43,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (1/1) ... [2023-12-02 13:54:43,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:54:43,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:54:43,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:54:43,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:54:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-12-02 13:54:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2023-12-02 13:54:43,760 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2023-12-02 13:54:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2023-12-02 13:54:43,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:54:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 13:54:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:54:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:54:43,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 13:54:43,761 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 13:54:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:54:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 13:54:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2023-12-02 13:54:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2023-12-02 13:54:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2023-12-02 13:54:43,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2023-12-02 13:54:43,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:54:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:54:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 13:54:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-12-02 13:54:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2023-12-02 13:54:43,763 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2023-12-02 13:54:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 13:54:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-02 13:54:43,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 13:54:43,984 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:54:43,987 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:54:55,857 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:54:56,038 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:54:56,038 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-12-02 13:54:56,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:54:56 BoogieIcfgContainer [2023-12-02 13:54:56,039 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:54:56,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:54:56,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:54:56,046 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:54:56,046 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:54:40" (1/3) ... [2023-12-02 13:54:56,047 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8bd695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:54:56, skipping insertion in model container [2023-12-02 13:54:56,047 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:54:43" (2/3) ... [2023-12-02 13:54:56,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b8bd695 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:54:56, skipping insertion in model container [2023-12-02 13:54:56,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:54:56" (3/3) ... [2023-12-02 13:54:56,050 INFO L112 eAbstractionObserver]: Analyzing ICFG tanh_w16_r4_case_1_safe.c-amalgamation.i [2023-12-02 13:54:56,073 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:54:56,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:54:56,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:54:56,146 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@46f60f44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:54:56,146 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:54:56,152 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 101 states have (on average 1.7227722772277227) internal successors, (174), 102 states have internal predecessors, (174), 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) [2023-12-02 13:54:56,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 13:54:56,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:54:56,164 INFO L195 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] [2023-12-02 13:54:56,165 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:54:56,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:54:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1402108118, now seen corresponding path program 1 times [2023-12-02 13:54:56,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:54:56,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387415681] [2023-12-02 13:54:56,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:54:56,201 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 [2023-12-02 13:54:56,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:54:56,204 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:54:56,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:55:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:55:01,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 3307 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 13:55:01,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:55:01,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:55:01,337 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:55:01,338 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:55:01,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387415681] [2023-12-02 13:55:01,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387415681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:55:01,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:55:01,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:55:01,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797724204] [2023-12-02 13:55:01,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:55:01,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 13:55:01,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:55:01,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 13:55:01,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:55:01,374 INFO L87 Difference]: Start difference. First operand has 115 states, 101 states have (on average 1.7227722772277227) internal successors, (174), 102 states have internal predecessors, (174), 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 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-12-02 13:55:03,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:06,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:08,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:09,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:55:09,532 INFO L93 Difference]: Finished difference Result 227 states and 377 transitions. [2023-12-02 13:55:09,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 13:55:09,544 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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 33 [2023-12-02 13:55:09,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:55:09,552 INFO L225 Difference]: With dead ends: 227 [2023-12-02 13:55:09,552 INFO L226 Difference]: Without dead ends: 113 [2023-12-02 13:55:09,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 13:55:09,559 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:55:09,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 130 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 2 Unknown, 0 Unchecked, 8.1s Time] [2023-12-02 13:55:09,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2023-12-02 13:55:09,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2023-12-02 13:55:09,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 100 states have (on average 1.44) internal successors, (144), 100 states have internal predecessors, (144), 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) [2023-12-02 13:55:09,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 158 transitions. [2023-12-02 13:55:09,613 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 158 transitions. Word has length 33 [2023-12-02 13:55:09,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:55:09,613 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 158 transitions. [2023-12-02 13:55:09,614 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 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) [2023-12-02 13:55:09,614 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 158 transitions. [2023-12-02 13:55:09,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 13:55:09,616 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:55:09,616 INFO L195 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] [2023-12-02 13:55:09,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:55:09,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:55:09,817 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:55:09,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:55:09,818 INFO L85 PathProgramCache]: Analyzing trace with hash 336332391, now seen corresponding path program 1 times [2023-12-02 13:55:09,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:55:09,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [382052756] [2023-12-02 13:55:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:55:09,826 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 [2023-12-02 13:55:09,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:55:09,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:55:09,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:55:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:55:16,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 3307 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:55:16,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:55:16,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:55:16,185 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:55:16,185 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:55:16,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [382052756] [2023-12-02 13:55:16,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [382052756] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:55:16,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:55:16,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 13:55:16,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765597136] [2023-12-02 13:55:16,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:55:16,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:55:16,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:55:16,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:55:16,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:55:16,190 INFO L87 Difference]: Start difference. First operand 113 states and 158 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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) [2023-12-02 13:55:18,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:20,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:22,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:24,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:26,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:28,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:30,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:32,071 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:35,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:55:38,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:55:38,395 INFO L93 Difference]: Finished difference Result 122 states and 168 transitions. [2023-12-02 13:55:38,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 13:55:38,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 33 [2023-12-02 13:55:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:55:38,404 INFO L225 Difference]: With dead ends: 122 [2023-12-02 13:55:38,405 INFO L226 Difference]: Without dead ends: 105 [2023-12-02 13:55:38,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:55:38,406 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 46 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:55:38,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 463 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 119 Invalid, 5 Unknown, 0 Unchecked, 22.1s Time] [2023-12-02 13:55:38,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-02 13:55:38,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-12-02 13:55:38,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 93 states have (on average 1.4301075268817205) internal successors, (133), 93 states have internal predecessors, (133), 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) [2023-12-02 13:55:38,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 145 transitions. [2023-12-02 13:55:38,418 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 145 transitions. Word has length 33 [2023-12-02 13:55:38,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:55:38,418 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 145 transitions. [2023-12-02 13:55:38,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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) [2023-12-02 13:55:38,419 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2023-12-02 13:55:38,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 13:55:38,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:55:38,420 INFO L195 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] [2023-12-02 13:55:38,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:55:38,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:55:38,621 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:55:38,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:55:38,622 INFO L85 PathProgramCache]: Analyzing trace with hash 717364780, now seen corresponding path program 1 times [2023-12-02 13:55:38,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:55:38,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [161411925] [2023-12-02 13:55:38,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:55:38,627 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 [2023-12-02 13:55:38,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:55:38,629 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 13:55:38,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1094684b-ab8a-4cdc-b970-5c51c50084fd/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 13:56:50,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:56:51,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 3307 conjuncts, 94 conjunts are in the unsatisfiable core [2023-12-02 13:56:51,238 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:56:51,542 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-12-02 13:56:51,543 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 740 treesize of output 692 [2023-12-02 13:56:51,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:56:51,594 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 13:56:51,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:56:51,668 INFO L349 Elim1Store]: treesize reduction 304, result has 0.3 percent of original size [2023-12-02 13:56:51,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 322 treesize of output 321 [2023-12-02 13:56:52,168 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 13:57:10,098 WARN L293 SmtUtils]: Spent 17.88s on a formula simplification. DAG size of input: 28 DAG size of output: 10 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 13:57:10,098 INFO L349 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2023-12-02 13:57:10,099 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 740 treesize of output 702 [2023-12-02 13:57:10,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:10,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:10,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:10,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:10,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:10,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:13,711 INFO L349 Elim1Store]: treesize reduction 303, result has 6.2 percent of original size [2023-12-02 13:57:13,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 332 treesize of output 344 [2023-12-02 13:57:14,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:14,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:14,516 INFO L349 Elim1Store]: treesize reduction 75, result has 12.8 percent of original size [2023-12-02 13:57:14,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 56 [2023-12-02 13:57:29,618 WARN L293 SmtUtils]: Spent 14.32s on a formula simplification. DAG size of input: 28 DAG size of output: 13 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 13:57:29,618 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-12-02 13:57:29,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 768 treesize of output 726 [2023-12-02 13:57:29,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:29,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:29,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:29,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:29,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:33,241 INFO L349 Elim1Store]: treesize reduction 301, result has 5.6 percent of original size [2023-12-02 13:57:33,242 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 330 treesize of output 340 [2023-12-02 13:57:33,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 13:57:34,141 INFO L349 Elim1Store]: treesize reduction 127, result has 13.0 percent of original size [2023-12-02 13:57:34,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 50 [2023-12-02 13:57:34,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 39 [2023-12-02 13:57:55,741 WARN L293 SmtUtils]: Spent 20.98s on a formula simplification. DAG size of input: 338 DAG size of output: 328 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 14:00:01,897 WARN L293 SmtUtils]: Spent 1.61m on a formula simplification. DAG size of input: 99 DAG size of output: 95 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 14:00:01,898 INFO L349 Elim1Store]: treesize reduction 8, result has 95.3 percent of original size [2023-12-02 14:00:01,899 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 3710 treesize of output 3590 [2023-12-02 14:00:05,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 14:00:05,179 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 14:00:05,180 INFO L224 Elim1Store]: Index analysis took 2609 ms [2023-12-02 14:06:47,868 WARN L293 SmtUtils]: Spent 6.71m on a formula simplification. DAG size of input: 452 DAG size of output: 312 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 14:06:47,869 INFO L349 Elim1Store]: treesize reduction 957, result has 40.2 percent of original size [2023-12-02 14:06:47,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 3 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 68 case distinctions, treesize of input 3159 treesize of output 3556 [2023-12-02 14:06:49,971 INFO L224 Elim1Store]: Index analysis took 1183 ms [2023-12-02 14:08:43,033 WARN L293 SmtUtils]: Spent 1.88m on a formula simplification. DAG size of input: 359 DAG size of output: 326 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 14:08:43,033 INFO L349 Elim1Store]: treesize reduction 66, result has 90.6 percent of original size [2023-12-02 14:08:43,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 2 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 21824704 treesize of output 21773372 [2023-12-02 14:08:49,555 WARN L293 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 12179 DAG size of output: 1654 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 14:08:50,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12730 treesize of output 12172 [2023-12-02 14:08:53,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12218 treesize of output 11998