./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_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_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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_795fcae6-7ade-47eb-8187-018641ccfc30/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 54ad5d593f5686538b9af3530b00b85f68561a49c31ac11b4b3b870cbfc2bcb9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:41:46,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:41:46,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 17:41:46,755 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:41:46,756 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:41:46,778 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:41:46,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:41:46,779 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:41:46,779 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:41:46,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:41:46,780 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:41:46,781 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:41:46,781 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:41:46,782 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:41:46,782 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:41:46,783 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:41:46,784 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:41:46,784 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:41:46,785 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:41:46,785 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:41:46,786 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:41:46,787 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:41:46,787 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:41:46,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:41:46,788 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:41:46,789 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:41:46,789 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:41:46,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:41:46,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:41:46,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:41:46,791 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:41:46,792 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:41:46,792 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:41:46,792 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:41:46,792 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:41:46,793 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:41:46,793 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:41:46,793 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:41:46,793 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:41:46,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:41:46,794 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:41:46,794 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:41:46,794 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:41:46,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:41:46,795 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:41:46,795 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:41:46,795 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:41:46,795 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_795fcae6-7ade-47eb-8187-018641ccfc30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54ad5d593f5686538b9af3530b00b85f68561a49c31ac11b4b3b870cbfc2bcb9 [2023-12-02 17:41:46,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:41:47,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:41:47,021 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:41:47,022 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:41:47,022 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:41:47,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i [2023-12-02 17:41:49,736 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:41:50,118 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:41:50,119 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i [2023-12-02 17:41:50,159 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/data/494dae9f1/3c6384632bce45debb998d0b6f1f60f6/FLAG73885f531 [2023-12-02 17:41:50,174 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/data/494dae9f1/3c6384632bce45debb998d0b6f1f60f6 [2023-12-02 17:41:50,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:41:50,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:41:50,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:41:50,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:41:50,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:41:50,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:41:50" (1/1) ... [2023-12-02 17:41:50,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b2f8fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:50, skipping insertion in model container [2023-12-02 17:41:50,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:41:50" (1/1) ... [2023-12-02 17:41:50,309 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:41:51,493 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_795fcae6-7ade-47eb-8187-018641ccfc30/sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i[73360,73373] [2023-12-02 17:41:52,189 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 17:41:52,195 INFO L158 Benchmark]: Toolchain (without parser) took 2015.84ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 94.3MB in the beginning and 145.1MB in the end (delta: -50.8MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. [2023-12-02 17:41:52,196 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 17:41:52,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2013.44ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 94.3MB in the beginning and 145.1MB in the end (delta: -50.8MB). Peak memory consumption was 81.2MB. Max. memory is 16.1GB. [2023-12-02 17:41:52,199 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 102.8MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2013.44ms. Allocated memory was 148.9MB in the beginning and 192.9MB in the end (delta: 44.0MB). Free memory was 94.3MB in the beginning and 145.1MB in the end (delta: -50.8MB). Peak memory consumption was 81.2MB. 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_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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_795fcae6-7ade-47eb-8187-018641ccfc30/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 54ad5d593f5686538b9af3530b00b85f68561a49c31ac11b4b3b870cbfc2bcb9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:41:53,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:41:54,000 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-12-02 17:41:54,006 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:41:54,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:41:54,033 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:41:54,034 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:41:54,035 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:41:54,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:41:54,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:41:54,037 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:41:54,038 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:41:54,038 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:41:54,039 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:41:54,040 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:41:54,040 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:41:54,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:41:54,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:41:54,042 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 17:41:54,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 17:41:54,043 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:41:54,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:41:54,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:41:54,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:41:54,045 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 17:41:54,046 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 17:41:54,046 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 17:41:54,046 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 17:41:54,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:41:54,047 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:41:54,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:41:54,048 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 17:41:54,048 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:41:54,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:41:54,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:41:54,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:41:54,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:41:54,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:41:54,050 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 17:41:54,050 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 17:41:54,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:41:54,051 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:41:54,051 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:41:54,051 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:41:54,051 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_795fcae6-7ade-47eb-8187-018641ccfc30/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 54ad5d593f5686538b9af3530b00b85f68561a49c31ac11b4b3b870cbfc2bcb9 [2023-12-02 17:41:54,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:41:54,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:41:54,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:41:54,347 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:41:54,348 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:41:54,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i [2023-12-02 17:41:57,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:41:57,554 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:41:57,555 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i [2023-12-02 17:41:57,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/data/fd7de1a6c/c590cdc6afa24fd79252a4ac9fc0cdad/FLAG5d4cb9e8c [2023-12-02 17:41:57,601 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/data/fd7de1a6c/c590cdc6afa24fd79252a4ac9fc0cdad [2023-12-02 17:41:57,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:41:57,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:41:57,606 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:41:57,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:41:57,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:41:57,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:41:57" (1/1) ... [2023-12-02 17:41:57,614 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8afe1b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:41:57, skipping insertion in model container [2023-12-02 17:41:57,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:41:57" (1/1) ... [2023-12-02 17:41:57,729 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:41:58,672 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_795fcae6-7ade-47eb-8187-018641ccfc30/sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i[73360,73373] [2023-12-02 17:41:59,422 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:41:59,442 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 17:41:59,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:41:59,517 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_795fcae6-7ade-47eb-8187-018641ccfc30/sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i[73360,73373] [2023-12-02 17:41:59,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:41:59,945 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:41:59,986 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_795fcae6-7ade-47eb-8187-018641ccfc30/sv-benchmarks/c/neural-networks/softsign_w32_r2_case_0_safe.c-amalgamation.i[73360,73373] [2023-12-02 17:42:00,507 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:42:00,755 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:42:00,755 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:42:00,756 WARN L675 CHandler]: The function feof is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:42:00,756 WARN L675 CHandler]: The function recurrent_activation is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:42:00,756 WARN L675 CHandler]: The function output_activation is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:42:00,762 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:42:00,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00 WrapperNode [2023-12-02 17:42:00,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:42:00,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:42:00,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:42:00,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:42:00,769 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:00,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,065 INFO L138 Inliner]: procedures = 780, calls = 8819, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 2633 [2023-12-02 17:42:01,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:42:01,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:42:01,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:42:01,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:42:01,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,091 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,150 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,182 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,191 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,214 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:42:01,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:42:01,215 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:42:01,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:42:01,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (1/1) ... [2023-12-02 17:42:01,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:42:01,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:42:01,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:42:01,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:42:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-12-02 17:42:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNN [2023-12-02 17:42:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNN [2023-12-02 17:42:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2023-12-02 17:42:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:42:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 17:42:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:42:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:42:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 17:42:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 17:42:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:42:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 17:42:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_affine_matmul [2023-12-02 17:42:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_affine_matmul [2023-12-02 17:42:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2023-12-02 17:42:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_ULONG~TO~VOID [2023-12-02 17:42:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:42:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 17:42:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-12-02 17:42:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-12-02 17:42:01,285 INFO L130 BoogieDeclarations]: Found specification of procedure k2c_simpleRNNcell [2023-12-02 17:42:01,285 INFO L138 BoogieDeclarations]: Found implementation of procedure k2c_simpleRNNcell [2023-12-02 17:42:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 17:42:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-12-02 17:42:01,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 17:42:01,492 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:42:01,494 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:42:15,100 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:42:15,301 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:42:15,301 INFO L309 CfgBuilder]: Removed 20 assume(true) statements. [2023-12-02 17:42:15,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:42:15 BoogieIcfgContainer [2023-12-02 17:42:15,302 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:42:15,304 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:42:15,304 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:42:15,308 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:42:15,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:41:57" (1/3) ... [2023-12-02 17:42:15,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2550f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:42:15, skipping insertion in model container [2023-12-02 17:42:15,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:42:00" (2/3) ... [2023-12-02 17:42:15,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2550f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:42:15, skipping insertion in model container [2023-12-02 17:42:15,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:42:15" (3/3) ... [2023-12-02 17:42:15,310 INFO L112 eAbstractionObserver]: Analyzing ICFG softsign_w32_r2_case_0_safe.c-amalgamation.i [2023-12-02 17:42:15,330 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:42:15,330 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:42:15,382 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:42:15,389 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;@7d374721, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:42:15,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:42:15,394 INFO L276 IsEmpty]: Start isEmpty. Operand has 139 states, 125 states have (on average 1.712) internal successors, (214), 126 states have internal predecessors, (214), 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 17:42:15,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 17:42:15,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:42:15,406 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, 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 17:42:15,406 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:42:15,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:42:15,412 INFO L85 PathProgramCache]: Analyzing trace with hash -962277177, now seen corresponding path program 1 times [2023-12-02 17:42:15,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:42:15,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1156043084] [2023-12-02 17:42:15,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:42:15,461 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 17:42:15,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:42:15,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:42:15,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:42:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:42:36,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 11295 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 17:42:36,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:42:36,042 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 17:42:36,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:42:36,043 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:42:36,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1156043084] [2023-12-02 17:42:36,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1156043084] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:42:36,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:42:36,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 17:42:36,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046424207] [2023-12-02 17:42:36,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:42:36,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 17:42:36,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:42:36,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 17:42:36,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 17:42:36,083 INFO L87 Difference]: Start difference. First operand has 139 states, 125 states have (on average 1.712) internal successors, (214), 126 states have internal predecessors, (214), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 17:42:38,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:40,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:42,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:44,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:42:45,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:42:45,314 INFO L93 Difference]: Finished difference Result 275 states and 457 transitions. [2023-12-02 17:42:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 17:42:45,323 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 57 [2023-12-02 17:42:45,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:42:45,330 INFO L225 Difference]: With dead ends: 275 [2023-12-02 17:42:45,330 INFO L226 Difference]: Without dead ends: 137 [2023-12-02 17:42:45,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 56 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 17:42:45,338 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:42:45,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2023-12-02 17:42:45,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-02 17:42:45,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2023-12-02 17:42:45,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 124 states have (on average 1.4193548387096775) internal successors, (176), 124 states have internal predecessors, (176), 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 17:42:45,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 190 transitions. [2023-12-02 17:42:45,388 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 190 transitions. Word has length 57 [2023-12-02 17:42:45,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:42:45,388 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 190 transitions. [2023-12-02 17:42:45,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 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 17:42:45,389 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 190 transitions. [2023-12-02 17:42:45,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 17:42:45,391 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:42:45,391 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, 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 17:42:45,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:42:45,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:42:45,592 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:42:45,592 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:42:45,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1438297788, now seen corresponding path program 1 times [2023-12-02 17:42:45,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:42:45,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922264325] [2023-12-02 17:42:45,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:42:45,612 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 17:42:45,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:42:45,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:42:45,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:43:03,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:03,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 11295 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:43:03,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:43:03,959 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 17:43:03,959 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:43:03,959 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:43:03,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922264325] [2023-12-02 17:43:03,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922264325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:03,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:43:03,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:43:03,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429083775] [2023-12-02 17:43:03,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:03,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:43:03,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:43:03,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:43:03,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:43:03,964 INFO L87 Difference]: Start difference. First operand 137 states and 190 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 17:43:06,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:08,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:10,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:12,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:15,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:17,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:17,012 INFO L93 Difference]: Finished difference Result 251 states and 349 transitions. [2023-12-02 17:43:17,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:43:17,018 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 57 [2023-12-02 17:43:17,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:17,020 INFO L225 Difference]: With dead ends: 251 [2023-12-02 17:43:17,020 INFO L226 Difference]: Without dead ends: 137 [2023-12-02 17:43:17,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:43:17,022 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 0 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:17,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 318 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 5 Unknown, 0 Unchecked, 13.0s Time] [2023-12-02 17:43:17,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-02 17:43:17,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2023-12-02 17:43:17,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 124 states have internal predecessors, (175), 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 17:43:17,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 189 transitions. [2023-12-02 17:43:17,032 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 189 transitions. Word has length 57 [2023-12-02 17:43:17,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:17,033 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 189 transitions. [2023-12-02 17:43:17,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 17:43:17,033 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 189 transitions. [2023-12-02 17:43:17,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 17:43:17,034 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:17,035 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, 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 17:43:17,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:43:17,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:43:17,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:43:17,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:17,236 INFO L85 PathProgramCache]: Analyzing trace with hash -594292286, now seen corresponding path program 1 times [2023-12-02 17:43:17,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:43:17,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417201258] [2023-12-02 17:43:17,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:17,249 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 17:43:17,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:43:17,250 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:43:17,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:43:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:43:35,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 11297 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-02 17:43:35,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:43:35,751 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 17:43:35,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:43:35,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:43:35,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417201258] [2023-12-02 17:43:35,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417201258] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:43:35,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:43:35,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:43:35,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618455342] [2023-12-02 17:43:35,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:43:35,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:43:35,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:43:35,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:43:35,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:43:35,755 INFO L87 Difference]: Start difference. First operand 137 states and 189 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 17:43:37,832 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 17:43:39,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:41,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:43,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:45,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:47,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:43:48,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:43:48,105 INFO L93 Difference]: Finished difference Result 236 states and 328 transitions. [2023-12-02 17:43:48,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:43:48,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 57 [2023-12-02 17:43:48,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:43:48,114 INFO L225 Difference]: With dead ends: 236 [2023-12-02 17:43:48,114 INFO L226 Difference]: Without dead ends: 137 [2023-12-02 17:43:48,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:43:48,116 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 0 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:43:48,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 316 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2023-12-02 17:43:48,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-12-02 17:43:48,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2023-12-02 17:43:48,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 124 states have (on average 1.403225806451613) internal successors, (174), 124 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 17:43:48,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2023-12-02 17:43:48,129 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 57 [2023-12-02 17:43:48,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:43:48,130 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2023-12-02 17:43:48,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 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 17:43:48,130 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2023-12-02 17:43:48,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 17:43:48,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:43:48,132 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, 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 17:43:48,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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)] Ended with exit code 0 [2023-12-02 17:43:48,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:43:48,333 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:43:48,334 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:43:48,334 INFO L85 PathProgramCache]: Analyzing trace with hash 223356164, now seen corresponding path program 1 times [2023-12-02 17:43:48,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:43:48,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2051350077] [2023-12-02 17:43:48,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:43:48,351 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 17:43:48,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:43:48,352 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:43:48,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 (5)] Waiting until timeout for monitored process [2023-12-02 17:44:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:44:14,558 INFO L262 TraceCheckSpWp]: Trace formula consists of 11299 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:44:14,563 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:44:14,671 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 17:44:14,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 17:44:14,672 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 17:44:14,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2051350077] [2023-12-02 17:44:14,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2051350077] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:44:14,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:44:14,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 17:44:14,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736321020] [2023-12-02 17:44:14,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:44:14,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 17:44:14,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 17:44:14,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 17:44:14,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:44:14,675 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 17:44:16,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:18,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:20,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:22,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:25,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:27,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:29,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:32,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:33,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:44:35,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:44:35,400 INFO L93 Difference]: Finished difference Result 146 states and 198 transitions. [2023-12-02 17:44:35,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 17:44:35,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 57 [2023-12-02 17:44:35,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:44:35,406 INFO L225 Difference]: With dead ends: 146 [2023-12-02 17:44:35,406 INFO L226 Difference]: Without dead ends: 129 [2023-12-02 17:44:35,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 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 17:44:35,407 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 46 mSDsluCounter, 427 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2023-12-02 17:44:35,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 583 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 7 Unknown, 0 Unchecked, 20.7s Time] [2023-12-02 17:44:35,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2023-12-02 17:44:35,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2023-12-02 17:44:35,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 117 states have (on average 1.393162393162393) internal successors, (163), 117 states have internal predecessors, (163), 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 17:44:35,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 175 transitions. [2023-12-02 17:44:35,418 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 175 transitions. Word has length 57 [2023-12-02 17:44:35,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:44:35,418 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 175 transitions. [2023-12-02 17:44:35,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 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 17:44:35,419 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 175 transitions. [2023-12-02 17:44:35,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 17:44:35,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:44:35,420 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, 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 17:44:35,622 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 (5)] Ended with exit code 0 [2023-12-02 17:44:35,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:44:35,625 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:44:35,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:44:35,626 INFO L85 PathProgramCache]: Analyzing trace with hash 604388553, now seen corresponding path program 1 times [2023-12-02 17:44:35,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 17:44:35,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1949612090] [2023-12-02 17:44:35,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:44:35,641 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 17:44:35,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 17:44:35,642 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 17:44:35,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_795fcae6-7ade-47eb-8187-018641ccfc30/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 (6)] Waiting until timeout for monitored process [2023-12-02 17:51:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:51:37,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 11299 conjuncts, 78 conjunts are in the unsatisfiable core [2023-12-02 17:51:37,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:51:37,670 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2023-12-02 17:51:37,671 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 226 treesize of output 194 [2023-12-02 17:51:37,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:51:37,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:51:37,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:51:37,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:51:37,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:51:37,834 INFO L349 Elim1Store]: treesize reduction 44, result has 29.0 percent of original size [2023-12-02 17:51:37,834 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 1 case distinctions, treesize of input 224 treesize of output 210 [2023-12-02 17:51:37,898 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 74 treesize of output 72 [2023-12-02 17:51:37,920 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 72 treesize of output 68 [2023-12-02 17:51:37,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:51:38,162 INFO L349 Elim1Store]: treesize reduction 138, result has 16.9 percent of original size [2023-12-02 17:51:38,162 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 6 case distinctions, treesize of input 48 treesize of output 55 [2023-12-02 17:51:38,400 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 26 treesize of output 20 [2023-12-02 17:51:38,663 INFO L349 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-12-02 17:51:38,663 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 212 treesize of output 170 [2023-12-02 17:51:38,672 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:51:38,673 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:51:38,674 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 17:51:38,677 WARN L214 Elim1Store]: Array PQE input equivalent to false [2023-12-02 17:51:53,181 INFO L349 Elim1Store]: treesize reduction 12, result has 85.2 percent of original size [2023-12-02 17:51:53,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 379 treesize of output 370 [2023-12-02 17:51:53,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:51:53,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:51:53,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-02 17:51:53,608 INFO L224 Elim1Store]: Index analysis took 318 ms [2023-12-02 17:52:02,785 WARN L293 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 401 DAG size of output: 386 (called from [L 346] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2023-12-02 17:52:02,786 INFO L349 Elim1Store]: treesize reduction 30, result has 96.2 percent of original size [2023-12-02 17:52:02,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 5 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 74 case distinctions, treesize of input 1274 treesize of output 1984 [2023-12-02 17:52:03,612 INFO L349 Elim1Store]: treesize reduction 54, result has 21.7 percent of original size [2023-12-02 17:52:03,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 10 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 120 treesize of output 112 [2023-12-02 17:52:03,829 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 547 treesize of output 511 [2023-12-02 17:52:03,959 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 533 treesize of output 485