./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0550a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0550a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --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 063973d0b8ff2c62d58397d3f439ae9b43bd56c1982411b931e1da0805487c85 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 19:50:26,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:50:26,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:50:26,719 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:50:26,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:50:26,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:50:26,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:50:26,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:50:26,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:50:26,727 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:50:26,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:50:26,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:50:26,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:50:26,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:50:26,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:50:26,734 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:50:26,735 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:50:26,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:50:26,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:50:26,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:50:26,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:50:26,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:50:26,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:50:26,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:50:26,748 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:50:26,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:50:26,749 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:50:26,750 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:50:26,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:50:26,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:50:26,752 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:50:26,753 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:50:26,754 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:50:26,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:50:26,756 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:50:26,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:50:26,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:50:26,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:50:26,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:50:26,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:50:26,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:50:26,761 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 19:50:26,785 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:50:26,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:50:26,786 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:50:26,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:50:26,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:50:26,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:50:26,788 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:50:26,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:50:26,788 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:50:26,788 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 19:50:26,789 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:50:26,789 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:50:26,789 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 19:50:26,790 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 19:50:26,790 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:50:26,790 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 19:50:26,790 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 19:50:26,791 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 19:50:26,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:50:26,792 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 19:50:26,792 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 19:50:26,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 19:50:26,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:50:26,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 19:50:26,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:50:26,793 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 19:50:26,793 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 19:50:26,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 19:50:26,794 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:50:26,794 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 19:50:26,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:50:26,795 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:50:26,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:50:26,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:50:26,795 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 19:50:26,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:50:26,796 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 19:50:26,796 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 19:50:26,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 19:50:26,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 19:50:26,797 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:50:26,797 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 063973d0b8ff2c62d58397d3f439ae9b43bd56c1982411b931e1da0805487c85 [2022-11-20 19:50:27,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:50:27,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:50:27,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:50:27,075 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:50:27,075 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:50:27,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/float-newlib/double_req_bl_0550a.c [2022-11-20 19:50:30,083 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:50:30,392 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:50:30,392 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/sv-benchmarks/c/float-newlib/double_req_bl_0550a.c [2022-11-20 19:50:30,403 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/data/167d74063/585303ea5a01468684b995a6799249a9/FLAG63be7f78c [2022-11-20 19:50:30,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/data/167d74063/585303ea5a01468684b995a6799249a9 [2022-11-20 19:50:30,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:50:30,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:50:30,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:50:30,426 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:50:30,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:50:30,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:50:30" (1/1) ... [2022-11-20 19:50:30,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b08c25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:30, skipping insertion in model container [2022-11-20 19:50:30,435 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:50:30" (1/1) ... [2022-11-20 19:50:30,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:50:30,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:50:30,675 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.NullPointerException at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitabsTranslation.abstractShiftRight(BitabsTranslation.java:159) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBinaryBitwiseIntegerExpression(IntegerTranslation.java:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.ExpressionTranslation.constructBinaryBitwiseExpression(ExpressionTranslation.java:131) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:418) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) 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:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1413) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1669) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1669) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1489) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2022-11-20 19:50:30,683 INFO L158 Benchmark]: Toolchain (without parser) took 258.43ms. Allocated memory is still 138.4MB. Free memory was 105.3MB in the beginning and 95.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 19:50:30,683 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 19:50:30,684 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.71ms. Allocated memory is still 138.4MB. Free memory was 105.3MB in the beginning and 95.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 19:50:30,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 138.4MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 255.71ms. Allocated memory is still 138.4MB. Free memory was 105.3MB in the beginning and 95.7MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: NullPointerException: null de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: NullPointerException: null: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.TypeSizes.extractIntegerValue(TypeSizes.java:384) 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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0550a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9 --witnessprinter.witness.filename witness.graphml --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 063973d0b8ff2c62d58397d3f439ae9b43bd56c1982411b931e1da0805487c85 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 19:50:32,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:50:32,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:50:32,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:50:32,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:50:32,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:50:32,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:50:32,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:50:32,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:50:32,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:50:33,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:50:33,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:50:33,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:50:33,006 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:50:33,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:50:33,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:50:33,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:50:33,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:50:33,011 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:50:33,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:50:33,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:50:33,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:50:33,016 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:50:33,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:50:33,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:50:33,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:50:33,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:50:33,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:50:33,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:50:33,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:50:33,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:50:33,025 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:50:33,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:50:33,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:50:33,027 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:50:33,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:50:33,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:50:33,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:50:33,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:50:33,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:50:33,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:50:33,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-20 19:50:33,086 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:50:33,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:50:33,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:50:33,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:50:33,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:50:33,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:50:33,088 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:50:33,088 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:50:33,088 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:50:33,089 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:50:33,089 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:50:33,089 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:50:33,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:50:33,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 19:50:33,090 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 19:50:33,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:50:33,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 19:50:33,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:50:33,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 19:50:33,091 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 19:50:33,091 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 19:50:33,092 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 19:50:33,092 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 19:50:33,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 19:50:33,092 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:50:33,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 19:50:33,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:50:33,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 19:50:33,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:50:33,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:50:33,094 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:50:33,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:50:33,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 19:50:33,094 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-20 19:50:33,098 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 19:50:33,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 19:50:33,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:50:33,100 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 19:50:33,100 INFO L138 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_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 063973d0b8ff2c62d58397d3f439ae9b43bd56c1982411b931e1da0805487c85 [2022-11-20 19:50:33,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:50:33,505 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:50:33,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:50:33,511 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:50:33,512 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:50:33,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/float-newlib/double_req_bl_0550a.c [2022-11-20 19:50:36,596 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:50:36,926 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:50:36,926 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/sv-benchmarks/c/float-newlib/double_req_bl_0550a.c [2022-11-20 19:50:36,937 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/data/c3b9e9380/18c11a9e6c614e1bacbc06675130f48b/FLAG51bc63318 [2022-11-20 19:50:36,955 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/data/c3b9e9380/18c11a9e6c614e1bacbc06675130f48b [2022-11-20 19:50:36,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:50:36,959 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:50:36,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:50:36,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:50:36,965 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:50:36,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:50:36" (1/1) ... [2022-11-20 19:50:36,967 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ea331b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:36, skipping insertion in model container [2022-11-20 19:50:36,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:50:36" (1/1) ... [2022-11-20 19:50:36,975 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:50:37,042 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:50:37,364 WARN L237 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_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/sv-benchmarks/c/float-newlib/double_req_bl_0550a.c[16148,16161] [2022-11-20 19:50:37,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:50:37,418 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 19:50:37,543 WARN L237 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_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/sv-benchmarks/c/float-newlib/double_req_bl_0550a.c[16148,16161] [2022-11-20 19:50:37,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:50:37,587 INFO L208 MainTranslator]: Completed translation [2022-11-20 19:50:37,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37 WrapperNode [2022-11-20 19:50:37,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 19:50:37,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 19:50:37,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 19:50:37,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 19:50:37,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,633 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,692 INFO L138 Inliner]: procedures = 29, calls = 396, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 947 [2022-11-20 19:50:37,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 19:50:37,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 19:50:37,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 19:50:37,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 19:50:37,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,718 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,792 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 19:50:37,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 19:50:37,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 19:50:37,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 19:50:37,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (1/1) ... [2022-11-20 19:50:37,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:50:37,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:50:37,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 19:50:37,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 19:50:37,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 19:50:37,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-20 19:50:37,918 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_double [2022-11-20 19:50:37,919 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_double [2022-11-20 19:50:37,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-20 19:50:37,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 19:50:37,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 19:50:37,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 19:50:37,920 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2022-11-20 19:50:37,920 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2022-11-20 19:50:37,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-20 19:50:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 19:50:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tan [2022-11-20 19:50:37,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tan [2022-11-20 19:50:37,922 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_double [2022-11-20 19:50:37,922 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_double [2022-11-20 19:50:37,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 19:50:37,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 19:50:37,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 19:50:37,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 19:50:38,144 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 19:50:38,146 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 19:51:49,793 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 19:51:49,802 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 19:51:49,803 INFO L300 CfgBuilder]: Removed 65 assume(true) statements. [2022-11-20 19:51:49,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:51:49 BoogieIcfgContainer [2022-11-20 19:51:49,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 19:51:49,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 19:51:49,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 19:51:49,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 19:51:49,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:50:36" (1/3) ... [2022-11-20 19:51:49,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274271b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:51:49, skipping insertion in model container [2022-11-20 19:51:49,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:50:37" (2/3) ... [2022-11-20 19:51:49,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@274271b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:51:49, skipping insertion in model container [2022-11-20 19:51:49,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:51:49" (3/3) ... [2022-11-20 19:51:49,817 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0550a.c [2022-11-20 19:51:49,838 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 19:51:49,838 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 19:51:49,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 19:51:49,901 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=LoopsAndPotentialCycles, 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;@48df6911, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 19:51:49,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 19:51:49,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 248 states, 231 states have (on average 1.670995670995671) internal successors, (386), 232 states have internal predecessors, (386), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 19:51:49,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 19:51:49,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:51:49,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:51:49,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:51:49,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:51:49,922 INFO L85 PathProgramCache]: Analyzing trace with hash 629560139, now seen corresponding path program 1 times [2022-11-20 19:51:49,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 19:51:49,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106722328] [2022-11-20 19:51:49,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:51:49,963 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 [2022-11-20 19:51:49,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 19:51:49,971 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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) [2022-11-20 19:51:50,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 19:51:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:51:50,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 19:51:50,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:51:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:51:50,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 19:51:50,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 19:51:50,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106722328] [2022-11-20 19:51:50,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106722328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:51:50,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:51:50,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 19:51:50,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775570828] [2022-11-20 19:51:50,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:51:50,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 19:51:50,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 19:51:50,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 19:51:50,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 19:51:50,704 INFO L87 Difference]: Start difference. First operand has 248 states, 231 states have (on average 1.670995670995671) internal successors, (386), 232 states have internal predecessors, (386), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:51:50,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:51:50,794 INFO L93 Difference]: Finished difference Result 494 states and 825 transitions. [2022-11-20 19:51:50,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 19:51:50,796 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-20 19:51:50,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:51:50,815 INFO L225 Difference]: With dead ends: 494 [2022-11-20 19:51:50,816 INFO L226 Difference]: Without dead ends: 245 [2022-11-20 19:51:50,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 19:51:50,830 INFO L413 NwaCegarLoop]: 342 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 19:51:50,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 19:51:50,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-20 19:51:50,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 245. [2022-11-20 19:51:50,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 229 states have (on average 1.3842794759825328) internal successors, (317), 229 states have internal predecessors, (317), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-20 19:51:50,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 339 transitions. [2022-11-20 19:51:50,908 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 339 transitions. Word has length 10 [2022-11-20 19:51:50,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:51:50,908 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 339 transitions. [2022-11-20 19:51:50,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:51:50,909 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 339 transitions. [2022-11-20 19:51:50,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 19:51:50,909 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:51:50,909 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:51:50,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 19:51:51,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 19:51:51,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:51:51,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:51:51,132 INFO L85 PathProgramCache]: Analyzing trace with hash -673085306, now seen corresponding path program 1 times [2022-11-20 19:51:51,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 19:51:51,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1625398875] [2022-11-20 19:51:51,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:51:51,133 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 [2022-11-20 19:51:51,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 19:51:51,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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) [2022-11-20 19:51:51,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 19:51:51,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:51:51,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-20 19:51:51,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:51:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:51:53,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 19:51:53,738 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-20 19:51:53,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1625398875] [2022-11-20 19:51:53,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1625398875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:51:53,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:51:53,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-20 19:51:53,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574045130] [2022-11-20 19:51:53,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:51:53,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-20 19:51:53,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-20 19:51:53,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-20 19:51:53,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-20 19:51:53,741 INFO L87 Difference]: Start difference. First operand 245 states and 339 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:52:02,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.97s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:05,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.94s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:07,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:09,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:11,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:16,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:18,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:21,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.73s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:24,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:26,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:29,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:32,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:34,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:37,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:40,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:42,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:44,696 WARN L539 Checker$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 [] [2022-11-20 19:52:47,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:49,830 WARN L539 Checker$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 [] [2022-11-20 19:52:52,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:55,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:52:58,067 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:00,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:04,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:07,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:10,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:12,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:14,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:18,598 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:20,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:25,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:27,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:29,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:32,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:34,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:36,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:38,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:40,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:43,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:45,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:48,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.45s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:50,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:52,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:54,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:53:57,943 WARN L539 Checker$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 [] [2022-11-20 19:54:01,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-20 19:54:03,679 WARN L539 Checker$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 [] [2022-11-20 19:54:05,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:54:08,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:54:10,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-20 19:54:11,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:54:11,353 INFO L93 Difference]: Finished difference Result 342 states and 460 transitions. [2022-11-20 19:54:11,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 19:54:11,355 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 19:54:11,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:54:11,358 INFO L225 Difference]: With dead ends: 342 [2022-11-20 19:54:11,358 INFO L226 Difference]: Without dead ends: 337 [2022-11-20 19:54:11,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 19:54:11,360 INFO L413 NwaCegarLoop]: 316 mSDtfsCounter, 137 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 4 mSolverCounterUnsat, 47 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 132.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 47 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 136.5s IncrementalHoareTripleChecker+Time [2022-11-20 19:54:11,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 1755 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 146 Invalid, 47 Unknown, 0 Unchecked, 136.5s Time] [2022-11-20 19:54:11,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2022-11-20 19:54:11,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 323. [2022-11-20 19:54:11,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 297 states have (on average 1.3569023569023568) internal successors, (403), 300 states have internal predecessors, (403), 17 states have call successors, (17), 8 states have call predecessors, (17), 8 states have return successors, (20), 14 states have call predecessors, (20), 17 states have call successors, (20) [2022-11-20 19:54:11,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 440 transitions. [2022-11-20 19:54:11,389 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 440 transitions. Word has length 11 [2022-11-20 19:54:11,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:54:11,389 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 440 transitions. [2022-11-20 19:54:11,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:54:11,390 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 440 transitions. [2022-11-20 19:54:11,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 19:54:11,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:54:11,391 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] [2022-11-20 19:54:11,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 19:54:11,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 19:54:11,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:54:11,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:54:11,610 INFO L85 PathProgramCache]: Analyzing trace with hash 727116, now seen corresponding path program 1 times [2022-11-20 19:54:11,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-20 19:54:11,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1071945383] [2022-11-20 19:54:11,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:54:11,612 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 [2022-11-20 19:54:11,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/mathsat [2022-11-20 19:54:11,613 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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) [2022-11-20 19:54:11,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 19:54:12,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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 [2022-11-20 19:54:12,033 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-20 19:54:12,039 INFO L158 Benchmark]: Toolchain (without parser) took 215080.15ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 51.5MB in the beginning and 47.8MB in the end (delta: 3.7MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-11-20 19:54:12,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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)] Forceful destruction successful, exit code 139 [2022-11-20 19:54:12,040 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 19:54:12,040 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.02ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 44.3MB in the end (delta: 7.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2022-11-20 19:54:12,041 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.23ms. Allocated memory is still 75.5MB. Free memory was 44.3MB in the beginning and 38.1MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 19:54:12,043 INFO L158 Benchmark]: Boogie Preprocessor took 119.78ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 38.1MB in the beginning and 81.3MB in the end (delta: -43.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-11-20 19:54:12,043 INFO L158 Benchmark]: RCFGBuilder took 71993.62ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 51.3MB in the end (delta: 30.0MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2022-11-20 19:54:12,044 INFO L158 Benchmark]: TraceAbstraction took 142229.44ms. Allocated memory is still 107.0MB. Free memory was 50.7MB in the beginning and 47.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2022-11-20 19:54:12,047 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.02ms. Allocated memory is still 75.5MB. Free memory was 51.3MB in the beginning and 44.3MB in the end (delta: 7.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.23ms. Allocated memory is still 75.5MB. Free memory was 44.3MB in the beginning and 38.1MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 119.78ms. Allocated memory was 75.5MB in the beginning and 107.0MB in the end (delta: 31.5MB). Free memory was 38.1MB in the beginning and 81.3MB in the end (delta: -43.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * RCFGBuilder took 71993.62ms. Allocated memory is still 107.0MB. Free memory was 81.3MB in the beginning and 51.3MB in the end (delta: 30.0MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. * TraceAbstraction took 142229.44ms. Allocated memory is still 107.0MB. Free memory was 50.7MB in the beginning and 47.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-20 19:54:12,259 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-20 19:54:12,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e4c30919-1bc4-418d-ab3f-ec3d284ef71e/bin/utaipan-6cKwYrpEi9/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) with exit command (exit)) Received EOF on stdin. No stderr output.