./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur --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 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588 --- 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-38b53e6 [2022-11-25 22:14:23,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:14:23,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:14:23,656 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:14:23,656 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:14:23,657 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:14:23,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:14:23,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:14:23,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:14:23,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:14:23,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:14:23,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:14:23,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:14:23,668 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:14:23,669 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:14:23,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:14:23,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:14:23,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:14:23,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:14:23,676 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:14:23,678 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:14:23,679 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:14:23,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:14:23,682 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:14:23,685 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:14:23,686 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:14:23,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:14:23,687 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:14:23,688 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:14:23,689 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:14:23,689 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:14:23,690 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:14:23,691 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:14:23,692 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:14:23,693 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:14:23,694 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:14:23,694 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:14:23,695 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:14:23,695 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:14:23,696 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:14:23,697 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:14:23,698 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:14:23,722 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:14:23,723 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:14:23,723 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:14:23,724 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:14:23,724 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:14:23,725 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:14:23,725 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:14:23,725 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:14:23,725 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:14:23,726 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:14:23,726 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:14:23,726 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:14:23,726 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:14:23,727 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:14:23,727 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:14:23,727 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:14:23,728 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:14:23,728 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:14:23,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:14:23,729 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:14:23,729 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:14:23,729 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:14:23,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:14:23,730 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:14:23,730 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:14:23,730 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:14:23,731 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:14:23,731 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:14:23,731 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:14:23,731 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:14:23,732 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:14:23,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:14:23,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:14:23,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:14:23,733 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:14:23,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:14:23,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:14:23,734 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:14:23,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:14:23,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:14:23,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:14:23,735 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588 [2022-11-25 22:14:24,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:14:24,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:14:24,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:14:24,037 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:14:24,038 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:14:24,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c [2022-11-25 22:14:27,068 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:14:27,288 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:14:27,289 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c [2022-11-25 22:14:27,297 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/data/27427c146/bf14806304d94779b8e9fbfd44f47b36/FLAG4963cf75d [2022-11-25 22:14:27,311 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/data/27427c146/bf14806304d94779b8e9fbfd44f47b36 [2022-11-25 22:14:27,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:14:27,315 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:14:27,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:14:27,317 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:14:27,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:14:27,321 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5389af59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27, skipping insertion in model container [2022-11-25 22:14:27,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,331 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:14:27,357 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:14:27,525 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[1995,2008] [2022-11-25 22:14:27,531 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[2364,2377] [2022-11-25 22:14:27,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:14:27,592 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:14:27,608 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[1995,2008] [2022-11-25 22:14:27,609 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[2364,2377] [2022-11-25 22:14:27,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:14:27,657 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:14:27,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27 WrapperNode [2022-11-25 22:14:27,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:14:27,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:14:27,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:14:27,659 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:14:27,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,708 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 187 [2022-11-25 22:14:27,715 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:14:27,716 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:14:27,716 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:14:27,716 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:14:27,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,730 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,730 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,737 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,745 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:14:27,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:14:27,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:14:27,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:14:27,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (1/1) ... [2022-11-25 22:14:27,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:14:27,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:27,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:14:27,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:14:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:14:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 22:14:27,874 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 22:14:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:14:27,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:14:27,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:14:27,875 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:14:27,875 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:14:27,954 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:14:27,956 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:14:28,472 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:14:28,852 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:14:28,852 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:14:28,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:14:28 BoogieIcfgContainer [2022-11-25 22:14:28,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:14:28,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:14:28,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:14:28,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:14:28,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:14:27" (1/3) ... [2022-11-25 22:14:28,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26137a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:14:28, skipping insertion in model container [2022-11-25 22:14:28,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:27" (2/3) ... [2022-11-25 22:14:28,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26137a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:14:28, skipping insertion in model container [2022-11-25 22:14:28,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:14:28" (3/3) ... [2022-11-25 22:14:28,869 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_2a.c.cil.c [2022-11-25 22:14:28,884 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:14:28,885 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:14:28,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:14:28,941 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;@e11bcee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:14:28,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:14:28,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 38 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 22:14:28,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:14:28,955 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:28,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:14:28,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:14:28,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:28,965 INFO L85 PathProgramCache]: Analyzing trace with hash 10105265, now seen corresponding path program 1 times [2022-11-25 22:14:28,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:14:28,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120513235] [2022-11-25 22:14:28,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:28,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:14:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:14:29,069 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:14:29,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:14:29,098 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:14:29,100 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:14:29,102 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-25 22:14:29,104 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-25 22:14:29,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:14:29,110 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:14:29,114 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:14:29,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:14:29 BoogieIcfgContainer [2022-11-25 22:14:29,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:14:29,135 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:14:29,135 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:14:29,136 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:14:29,136 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:14:28" (3/4) ... [2022-11-25 22:14:29,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:14:29,140 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:14:29,141 INFO L158 Benchmark]: Toolchain (without parser) took 1825.93ms. Allocated memory was 180.4MB in the beginning and 237.0MB in the end (delta: 56.6MB). Free memory was 134.5MB in the beginning and 177.1MB in the end (delta: -42.7MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2022-11-25 22:14:29,142 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 143.8MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:14:29,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.31ms. Allocated memory is still 180.4MB. Free memory was 134.5MB in the beginning and 120.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 22:14:29,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.29ms. Allocated memory is still 180.4MB. Free memory was 120.1MB in the beginning and 117.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:14:29,144 INFO L158 Benchmark]: Boogie Preprocessor took 33.92ms. Allocated memory is still 180.4MB. Free memory was 117.7MB in the beginning and 115.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:14:29,144 INFO L158 Benchmark]: RCFGBuilder took 1105.52ms. Allocated memory was 180.4MB in the beginning and 237.0MB in the end (delta: 56.6MB). Free memory was 115.9MB in the beginning and 191.8MB in the end (delta: -75.9MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2022-11-25 22:14:29,145 INFO L158 Benchmark]: TraceAbstraction took 273.77ms. Allocated memory is still 237.0MB. Free memory was 191.8MB in the beginning and 178.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:14:29,145 INFO L158 Benchmark]: Witness Printer took 4.80ms. Allocated memory is still 237.0MB. Free memory was 178.2MB in the beginning and 177.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:14:29,149 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 143.8MB in the end (delta: 28.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.31ms. Allocated memory is still 180.4MB. Free memory was 134.5MB in the beginning and 120.1MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.29ms. Allocated memory is still 180.4MB. Free memory was 120.1MB in the beginning and 117.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.92ms. Allocated memory is still 180.4MB. Free memory was 117.7MB in the beginning and 115.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1105.52ms. Allocated memory was 180.4MB in the beginning and 237.0MB in the end (delta: 56.6MB). Free memory was 115.9MB in the beginning and 191.8MB in the end (delta: -75.9MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * TraceAbstraction took 273.77ms. Allocated memory is still 237.0MB. Free memory was 191.8MB in the beginning and 178.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.80ms. Allocated memory is still 237.0MB. Free memory was 178.2MB in the beginning and 177.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.5f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 22:14:29,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur --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 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588 --- 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-38b53e6 [2022-11-25 22:14:31,572 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:14:31,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:14:31,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:14:31,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:14:31,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:14:31,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:14:31,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:14:31,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:14:31,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:14:31,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:14:31,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:14:31,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:14:31,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:14:31,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:14:31,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:14:31,641 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:14:31,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:14:31,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:14:31,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:14:31,653 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:14:31,659 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:14:31,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:14:31,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:14:31,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:14:31,670 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:14:31,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:14:31,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:14:31,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:14:31,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:14:31,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:14:31,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:14:31,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:14:31,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:14:31,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:14:31,702 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:14:31,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:14:31,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:14:31,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:14:31,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:14:31,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:14:31,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-25 22:14:31,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:14:31,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:14:31,747 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:14:31,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:14:31,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:14:31,749 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:14:31,749 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:14:31,749 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:14:31,749 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:14:31,750 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:14:31,751 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:14:31,751 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:14:31,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:14:31,752 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:14:31,752 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:14:31,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:14:31,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:14:31,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:14:31,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:14:31,753 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:14:31,753 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:14:31,753 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:14:31,754 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:14:31,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:14:31,754 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:14:31,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:14:31,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:14:31,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:14:31,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:14:31,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:14:31,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:14:31,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:14:31,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:14:31,756 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:14:31,756 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:14:31,756 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:14:31,756 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:14:31,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:14:31,757 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b944d221faff3c6824998b05c9a224fa74d600c63469e9d7cd97b7a5527588 [2022-11-25 22:14:32,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:14:32,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:14:32,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:14:32,161 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:14:32,162 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:14:32,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c [2022-11-25 22:14:35,200 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:14:35,445 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:14:35,445 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c [2022-11-25 22:14:35,453 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/data/5204952d9/9e447abd829a461cba8f9e35c35e3e9a/FLAG1629cd67a [2022-11-25 22:14:35,472 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/data/5204952d9/9e447abd829a461cba8f9e35c35e3e9a [2022-11-25 22:14:35,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:14:35,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:14:35,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:14:35,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:14:35,482 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:14:35,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64d9bffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35, skipping insertion in model container [2022-11-25 22:14:35,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:14:35,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:14:35,701 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[1995,2008] [2022-11-25 22:14:35,708 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[2364,2377] [2022-11-25 22:14:35,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:14:35,766 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:14:35,794 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[1995,2008] [2022-11-25 22:14:35,795 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_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/sv-benchmarks/c/combinations/square_8+soft_float_2a.c.cil.c[2364,2377] [2022-11-25 22:14:35,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:14:35,835 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:14:35,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35 WrapperNode [2022-11-25 22:14:35,836 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:14:35,837 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:14:35,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:14:35,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:14:35,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,881 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-25 22:14:35,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:14:35,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:14:35,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:14:35,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:14:35,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,923 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,932 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:14:35,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:14:35,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:14:35,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:14:35,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (1/1) ... [2022-11-25 22:14:35,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:14:35,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:14:35,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:14:36,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:14:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:14:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:14:36,043 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-25 22:14:36,043 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-25 22:14:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:14:36,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:14:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-25 22:14:36,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-25 22:14:36,164 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:14:36,166 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:14:38,844 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:14:38,851 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:14:38,852 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-25 22:14:38,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:14:38 BoogieIcfgContainer [2022-11-25 22:14:38,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:14:38,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:14:38,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:14:38,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:14:38,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:14:35" (1/3) ... [2022-11-25 22:14:38,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192629fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:14:38, skipping insertion in model container [2022-11-25 22:14:38,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:14:35" (2/3) ... [2022-11-25 22:14:38,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@192629fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:14:38, skipping insertion in model container [2022-11-25 22:14:38,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:14:38" (3/3) ... [2022-11-25 22:14:38,863 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8+soft_float_2a.c.cil.c [2022-11-25 22:14:38,882 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:14:38,882 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:14:38,933 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:14:38,940 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;@1a608977, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:14:38,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:14:38,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 22:14:38,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:14:38,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:38,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:14:38,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:14:38,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:38,961 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-25 22:14:38,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:14:38,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222770914] [2022-11-25 22:14:38,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:38,975 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 [2022-11-25 22:14:38,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:14:38,982 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:14:39,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:14:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:14:39,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:14:39,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:14:39,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:14:39,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:14:39,752 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:14:39,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222770914] [2022-11-25 22:14:39,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222770914] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:14:39,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:14:39,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:14:39,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185975912] [2022-11-25 22:14:39,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:14:39,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:14:39,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:14:39,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:14:39,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:14:39,815 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-25 22:14:39,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:14:39,864 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-11-25 22:14:39,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:14:39,866 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-11-25 22:14:39,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:14:39,877 INFO L225 Difference]: With dead ends: 117 [2022-11-25 22:14:39,877 INFO L226 Difference]: Without dead ends: 52 [2022-11-25 22:14:39,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:14:39,885 INFO L413 NwaCegarLoop]: 82 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, 82 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 [2022-11-25 22:14:39,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:14:39,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-25 22:14:39,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-25 22:14:39,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 22:14:39,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-11-25 22:14:39,942 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-11-25 22:14:39,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:14:39,943 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-11-25 22:14:39,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-11-25 22:14:39,944 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-11-25 22:14:39,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:14:39,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:14:39,945 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:14:39,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:14:40,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:14:40,160 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:14:40,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:14:40,161 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-25 22:14:40,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:14:40,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571023888] [2022-11-25 22:14:40,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:14:40,162 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 [2022-11-25 22:14:40,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:14:40,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:14:40,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:16:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:16:30,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:16:30,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:16:46,051 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (and (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) |c_ULTIMATE.start_main1_~result~0#1|) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-25 22:17:19,661 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))) (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (_ +zero 8 24))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))))) is different from false [2022-11-25 22:17:21,717 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0))) (.cse2 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0))) (.cse3 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0))) (.cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0))) (.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)))) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))) (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven .cse1 |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (_ +zero 8 24))) (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0))))) is different from true [2022-11-25 22:17:21,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:17:21,718 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:21,719 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:21,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571023888] [2022-11-25 22:17:21,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571023888] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:21,719 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:21,719 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:17:21,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012474011] [2022-11-25 22:17:21,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:21,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:17:21,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:21,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:17:21,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=12, Unknown=3, NotChecked=14, Total=42 [2022-11-25 22:17:21,723 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-25 22:17:24,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-25 22:17:26,406 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.lt |c_ULTIMATE.start_main1_~IN~0#1| .cse0)) (.cse2 (fp.geq |c_ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)))) (and (exists ((|ULTIMATE.start_main1_~IN~0#1| (_ FloatingPoint 8 24))) (and (fp.lt |ULTIMATE.start_main1_~IN~0#1| .cse0) (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode .cse0 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 8.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 16.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 5.0 128.0)) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|) |ULTIMATE.start_main1_~IN~0#1|)) |c_ULTIMATE.start_main1_~result~0#1|) (fp.geq |ULTIMATE.start_main1_~IN~0#1| (_ +zero 8 24)))) .cse1 (or (and (or (not .cse1) (not .cse2)) (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv0 32))) (and .cse1 (= |c_ULTIMATE.start_assume_abort_if_not_~cond#1| (_ bv1 32)) .cse2)) .cse2 (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false [2022-11-25 22:17:26,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:26,586 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2022-11-25 22:17:26,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:17:26,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 7 [2022-11-25 22:17:26,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:26,588 INFO L225 Difference]: With dead ends: 52 [2022-11-25 22:17:26,588 INFO L226 Difference]: Without dead ends: 47 [2022-11-25 22:17:26,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=20, Invalid=18, Unknown=4, NotChecked=30, Total=72 [2022-11-25 22:17:26,590 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 68 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:26,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 178 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 1 Unknown, 138 Unchecked, 2.4s Time] [2022-11-25 22:17:26,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-25 22:17:26,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-25 22:17:26,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 40 states have (on average 1.425) internal successors, (57), 40 states have internal predecessors, (57), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-25 22:17:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 66 transitions. [2022-11-25 22:17:26,599 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 66 transitions. Word has length 7 [2022-11-25 22:17:26,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:26,599 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 66 transitions. [2022-11-25 22:17:26,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2022-11-25 22:17:26,600 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 66 transitions. [2022-11-25 22:17:26,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 22:17:26,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:26,602 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:26,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:26,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:17:26,823 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:26,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:26,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1370969986, now seen corresponding path program 1 times [2022-11-25 22:17:26,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:26,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613629191] [2022-11-25 22:17:26,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:26,825 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 [2022-11-25 22:17:26,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:26,827 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:26,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:17:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:26,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:17:26,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:27,125 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:27,131 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:27,131 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:27,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613629191] [2022-11-25 22:17:27,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613629191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:27,132 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:27,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:17:27,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136073823] [2022-11-25 22:17:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:27,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:17:27,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:27,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:17:27,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:17:27,140 INFO L87 Difference]: Start difference. First operand 47 states and 66 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:17:27,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:27,549 INFO L93 Difference]: Finished difference Result 104 states and 150 transitions. [2022-11-25 22:17:27,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:17:27,550 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2022-11-25 22:17:27,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:27,554 INFO L225 Difference]: With dead ends: 104 [2022-11-25 22:17:27,555 INFO L226 Difference]: Without dead ends: 61 [2022-11-25 22:17:27,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:17:27,558 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 16 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:27,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 146 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:17:27,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-25 22:17:27,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 52. [2022-11-25 22:17:27,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 44 states have internal predecessors, (61), 5 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-25 22:17:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 72 transitions. [2022-11-25 22:17:27,574 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 72 transitions. Word has length 43 [2022-11-25 22:17:27,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:27,575 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 72 transitions. [2022-11-25 22:17:27,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:17:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 72 transitions. [2022-11-25 22:17:27,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 22:17:27,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:27,577 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:27,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 0 [2022-11-25 22:17:27,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:17:27,790 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:27,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:27,791 INFO L85 PathProgramCache]: Analyzing trace with hash -14997806, now seen corresponding path program 1 times [2022-11-25 22:17:27,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:27,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2018769252] [2022-11-25 22:17:27,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:27,792 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 [2022-11-25 22:17:27,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:27,793 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:27,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 22:17:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:27,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:17:27,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:28,075 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:28,075 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:28,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2018769252] [2022-11-25 22:17:28,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2018769252] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:28,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:28,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:17:28,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287144299] [2022-11-25 22:17:28,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:28,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:17:28,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:28,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:17:28,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:17:28,078 INFO L87 Difference]: Start difference. First operand 52 states and 72 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:17:28,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:28,459 INFO L93 Difference]: Finished difference Result 108 states and 153 transitions. [2022-11-25 22:17:28,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:17:28,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2022-11-25 22:17:28,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:28,461 INFO L225 Difference]: With dead ends: 108 [2022-11-25 22:17:28,461 INFO L226 Difference]: Without dead ends: 64 [2022-11-25 22:17:28,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:17:28,463 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 10 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 160 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:28,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 160 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:17:28,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-25 22:17:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2022-11-25 22:17:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 48 states have (on average 1.375) internal successors, (66), 49 states have internal predecessors, (66), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 22:17:28,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 79 transitions. [2022-11-25 22:17:28,476 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 79 transitions. Word has length 46 [2022-11-25 22:17:28,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:28,476 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 79 transitions. [2022-11-25 22:17:28,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:17:28,477 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2022-11-25 22:17:28,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-25 22:17:28,478 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:28,478 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:28,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:28,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:17:28,700 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:28,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:28,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1638472845, now seen corresponding path program 1 times [2022-11-25 22:17:28,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:28,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1409278540] [2022-11-25 22:17:28,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:28,703 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 [2022-11-25 22:17:28,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:28,704 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:28,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-25 22:17:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:28,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 22:17:28,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:29,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:29,003 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:29,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1409278540] [2022-11-25 22:17:29,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1409278540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:29,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:29,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 22:17:29,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841283328] [2022-11-25 22:17:29,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:29,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:17:29,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:29,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:17:29,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 22:17:29,006 INFO L87 Difference]: Start difference. First operand 57 states and 79 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:17:29,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:29,416 INFO L93 Difference]: Finished difference Result 117 states and 165 transitions. [2022-11-25 22:17:29,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:17:29,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2022-11-25 22:17:29,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:29,418 INFO L225 Difference]: With dead ends: 117 [2022-11-25 22:17:29,418 INFO L226 Difference]: Without dead ends: 68 [2022-11-25 22:17:29,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:17:29,420 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 17 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:29,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 153 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:17:29,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-25 22:17:29,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 58. [2022-11-25 22:17:29,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 50 states have internal predecessors, (67), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 22:17:29,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 80 transitions. [2022-11-25 22:17:29,430 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 80 transitions. Word has length 47 [2022-11-25 22:17:29,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:29,430 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 80 transitions. [2022-11-25 22:17:29,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:17:29,430 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2022-11-25 22:17:29,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-25 22:17:29,432 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:29,432 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:29,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:29,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:17:29,645 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:29,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:29,646 INFO L85 PathProgramCache]: Analyzing trace with hash 388661875, now seen corresponding path program 1 times [2022-11-25 22:17:29,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:29,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [723549523] [2022-11-25 22:17:29,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:29,647 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 [2022-11-25 22:17:29,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:29,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:29,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-25 22:17:29,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:29,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:17:29,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:29,965 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:29,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:29,966 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:29,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [723549523] [2022-11-25 22:17:29,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [723549523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:29,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:29,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:17:29,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086025993] [2022-11-25 22:17:29,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:29,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:17:29,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:29,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:17:29,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:17:29,968 INFO L87 Difference]: Start difference. First operand 58 states and 80 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:17:30,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:30,592 INFO L93 Difference]: Finished difference Result 125 states and 176 transitions. [2022-11-25 22:17:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 22:17:30,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 48 [2022-11-25 22:17:30,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:30,594 INFO L225 Difference]: With dead ends: 125 [2022-11-25 22:17:30,594 INFO L226 Difference]: Without dead ends: 75 [2022-11-25 22:17:30,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:17:30,599 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 19 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:30,599 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 202 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 22:17:30,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-25 22:17:30,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 59. [2022-11-25 22:17:30,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.38) internal successors, (69), 51 states have internal predecessors, (69), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 22:17:30,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 82 transitions. [2022-11-25 22:17:30,610 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 82 transitions. Word has length 48 [2022-11-25 22:17:30,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:30,611 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 82 transitions. [2022-11-25 22:17:30,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-25 22:17:30,611 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2022-11-25 22:17:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-25 22:17:30,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:30,613 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:30,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:30,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:17:30,826 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:30,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash 933318672, now seen corresponding path program 1 times [2022-11-25 22:17:30,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:30,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635787158] [2022-11-25 22:17:30,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:30,827 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 [2022-11-25 22:17:30,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:30,829 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:30,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-25 22:17:30,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:30,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:17:30,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:31,216 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:31,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:31,875 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:17:31,875 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:31,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [635787158] [2022-11-25 22:17:31,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [635787158] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:31,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [102422756] [2022-11-25 22:17:31,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:31,876 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:31,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:17:31,884 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:17:31,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2022-11-25 22:17:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:31,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:17:31,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:32,188 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 22:17:32,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:32,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [102422756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:32,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:17:32,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2022-11-25 22:17:32,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484896952] [2022-11-25 22:17:32,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:32,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:17:32,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:32,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:17:32,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:17:32,191 INFO L87 Difference]: Start difference. First operand 59 states and 82 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:32,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:32,223 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2022-11-25 22:17:32,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:17:32,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 49 [2022-11-25 22:17:32,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:32,225 INFO L225 Difference]: With dead ends: 79 [2022-11-25 22:17:32,225 INFO L226 Difference]: Without dead ends: 59 [2022-11-25 22:17:32,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:17:32,226 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 13 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:32,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 128 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:17:32,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-25 22:17:32,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-25 22:17:32,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.36) internal successors, (68), 51 states have internal predecessors, (68), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 22:17:32,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2022-11-25 22:17:32,235 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 81 transitions. Word has length 49 [2022-11-25 22:17:32,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:32,235 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 81 transitions. [2022-11-25 22:17:32,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:32,236 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 81 transitions. [2022-11-25 22:17:32,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 22:17:32,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:32,237 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:32,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:32,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:32,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:17:32,638 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:32,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:32,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1543994934, now seen corresponding path program 1 times [2022-11-25 22:17:32,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:32,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065554596] [2022-11-25 22:17:32,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:32,640 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 [2022-11-25 22:17:32,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:32,641 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:32,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-25 22:17:32,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:32,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:17:32,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:32,994 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:32,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:33,624 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:17:33,624 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:33,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065554596] [2022-11-25 22:17:33,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065554596] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:33,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1540595365] [2022-11-25 22:17:33,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:33,625 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:33,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:17:33,628 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:17:33,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2022-11-25 22:17:33,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:33,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:17:33,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-25 22:17:34,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:34,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1540595365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:34,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:17:34,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2022-11-25 22:17:34,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823493427] [2022-11-25 22:17:34,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:34,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 22:17:34,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:34,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 22:17:34,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-25 22:17:34,016 INFO L87 Difference]: Start difference. First operand 59 states and 81 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:34,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:34,170 INFO L93 Difference]: Finished difference Result 80 states and 110 transitions. [2022-11-25 22:17:34,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 22:17:34,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2022-11-25 22:17:34,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:34,172 INFO L225 Difference]: With dead ends: 80 [2022-11-25 22:17:34,172 INFO L226 Difference]: Without dead ends: 59 [2022-11-25 22:17:34,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2022-11-25 22:17:34,173 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 32 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:34,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 187 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:17:34,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-25 22:17:34,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-25 22:17:34,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 50 states have (on average 1.34) internal successors, (67), 51 states have internal predecessors, (67), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-25 22:17:34,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2022-11-25 22:17:34,182 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 51 [2022-11-25 22:17:34,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:34,182 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2022-11-25 22:17:34,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:34,183 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2022-11-25 22:17:34,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 22:17:34,184 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:34,184 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:34,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:34,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:34,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:34,603 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:34,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:34,603 INFO L85 PathProgramCache]: Analyzing trace with hash -2130800948, now seen corresponding path program 1 times [2022-11-25 22:17:34,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:34,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375389999] [2022-11-25 22:17:34,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:34,604 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 [2022-11-25 22:17:34,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:34,605 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:34,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-25 22:17:34,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:34,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:17:34,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:34,952 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:34,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:17:35,626 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:35,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375389999] [2022-11-25 22:17:35,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375389999] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:35,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2139584167] [2022-11-25 22:17:35,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:35,627 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:35,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:17:35,631 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:17:35,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-25 22:17:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:35,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:17:35,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:36,345 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-25 22:17:36,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:36,346 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2139584167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:36,346 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:17:36,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 5] total 13 [2022-11-25 22:17:36,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929873272] [2022-11-25 22:17:36,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:36,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 22:17:36,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:36,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 22:17:36,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2022-11-25 22:17:36,348 INFO L87 Difference]: Start difference. First operand 59 states and 80 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:36,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:36,882 INFO L93 Difference]: Finished difference Result 104 states and 141 transitions. [2022-11-25 22:17:36,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 22:17:36,883 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2022-11-25 22:17:36,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:36,884 INFO L225 Difference]: With dead ends: 104 [2022-11-25 22:17:36,884 INFO L226 Difference]: Without dead ends: 86 [2022-11-25 22:17:36,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:17:36,886 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 31 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:36,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 343 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 22:17:36,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-25 22:17:36,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 72. [2022-11-25 22:17:36,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.278688524590164) internal successors, (78), 63 states have internal predecessors, (78), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-25 22:17:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 96 transitions. [2022-11-25 22:17:36,897 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 96 transitions. Word has length 51 [2022-11-25 22:17:36,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:36,898 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 96 transitions. [2022-11-25 22:17:36,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:36,898 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 96 transitions. [2022-11-25 22:17:36,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-25 22:17:36,899 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:36,900 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:36,912 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-11-25 22:17:37,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:37,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:37,312 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:37,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:37,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1771139338, now seen corresponding path program 1 times [2022-11-25 22:17:37,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:37,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623547071] [2022-11-25 22:17:37,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:37,313 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 [2022-11-25 22:17:37,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:37,314 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:37,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-25 22:17:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:37,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:17:37,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:37,626 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:37,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:38,222 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:17:38,222 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:38,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623547071] [2022-11-25 22:17:38,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623547071] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:38,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1671993804] [2022-11-25 22:17:38,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:38,223 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:38,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:17:38,226 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:17:38,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2022-11-25 22:17:38,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:38,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:17:38,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:38,895 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-25 22:17:38,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:39,341 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-25 22:17:39,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1671993804] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:39,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [530654382] [2022-11-25 22:17:39,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:39,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:39,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:39,350 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:39,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-25 22:17:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:39,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:17:39,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:39,550 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:39,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:39,905 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:17:39,906 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [530654382] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:39,906 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:17:39,906 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 6, 5, 5] total 12 [2022-11-25 22:17:39,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747400270] [2022-11-25 22:17:39,906 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:17:39,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 22:17:39,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:39,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 22:17:39,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-25 22:17:39,908 INFO L87 Difference]: Start difference. First operand 72 states and 96 transitions. Second operand has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 3 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 22:17:42,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:42,339 INFO L93 Difference]: Finished difference Result 172 states and 235 transitions. [2022-11-25 22:17:42,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 22:17:42,340 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 3 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 51 [2022-11-25 22:17:42,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:42,341 INFO L225 Difference]: With dead ends: 172 [2022-11-25 22:17:42,342 INFO L226 Difference]: Without dead ends: 108 [2022-11-25 22:17:42,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2022-11-25 22:17:42,343 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 78 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:42,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 357 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-25 22:17:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-25 22:17:42,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 80. [2022-11-25 22:17:42,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 71 states have internal predecessors, (90), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-25 22:17:42,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 108 transitions. [2022-11-25 22:17:42,363 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 108 transitions. Word has length 51 [2022-11-25 22:17:42,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:42,364 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 108 transitions. [2022-11-25 22:17:42,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.916666666666667) internal successors, (71), 11 states have internal predecessors, (71), 3 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 22:17:42,364 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 108 transitions. [2022-11-25 22:17:42,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 22:17:42,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:42,365 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:42,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:42,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:42,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:42,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:42,971 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:42,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:42,972 INFO L85 PathProgramCache]: Analyzing trace with hash 482568913, now seen corresponding path program 1 times [2022-11-25 22:17:42,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:42,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1798937020] [2022-11-25 22:17:42,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:42,972 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 [2022-11-25 22:17:42,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:42,973 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:42,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 (17)] Waiting until timeout for monitored process [2022-11-25 22:17:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:43,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:17:43,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:43,399 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:43,399 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:17:44,193 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:44,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1798937020] [2022-11-25 22:17:44,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1798937020] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:44,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1133594296] [2022-11-25 22:17:44,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:44,194 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:44,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:17:44,199 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:17:44,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-25 22:17:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:44,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 22:17:44,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:44,633 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-25 22:17:44,633 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:17:44,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1133594296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:44,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 22:17:44,634 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 13 [2022-11-25 22:17:44,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716490573] [2022-11-25 22:17:44,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:44,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:17:44,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:44,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:17:44,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2022-11-25 22:17:44,635 INFO L87 Difference]: Start difference. First operand 80 states and 108 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:45,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:45,001 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2022-11-25 22:17:45,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:17:45,002 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2022-11-25 22:17:45,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:45,007 INFO L225 Difference]: With dead ends: 93 [2022-11-25 22:17:45,007 INFO L226 Difference]: Without dead ends: 87 [2022-11-25 22:17:45,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:17:45,008 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 13 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:45,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 231 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:17:45,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-25 22:17:45,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 85. [2022-11-25 22:17:45,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 74 states have (on average 1.2837837837837838) internal successors, (95), 76 states have internal predecessors, (95), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2022-11-25 22:17:45,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 113 transitions. [2022-11-25 22:17:45,039 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 113 transitions. Word has length 55 [2022-11-25 22:17:45,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:45,039 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 113 transitions. [2022-11-25 22:17:45,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:45,039 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 113 transitions. [2022-11-25 22:17:45,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 22:17:45,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:45,040 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:45,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:45,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 (17)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:45,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:17:45,441 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:45,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:45,442 INFO L85 PathProgramCache]: Analyzing trace with hash 539827215, now seen corresponding path program 1 times [2022-11-25 22:17:45,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:45,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [818738177] [2022-11-25 22:17:45,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:45,442 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 [2022-11-25 22:17:45,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:45,443 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:45,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 (19)] Waiting until timeout for monitored process [2022-11-25 22:17:45,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:45,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:17:45,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:45,826 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:45,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:46,544 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:17:46,544 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:46,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [818738177] [2022-11-25 22:17:46,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [818738177] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:46,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2133620729] [2022-11-25 22:17:46,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:46,545 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:46,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:17:46,547 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:17:46,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-25 22:17:46,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:46,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:17:46,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:46,828 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:46,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:47,194 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:17:47,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2133620729] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:47,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706789743] [2022-11-25 22:17:47,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:47,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:47,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:47,199 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:47,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-25 22:17:47,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:47,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-25 22:17:47,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:48,015 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-25 22:17:48,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:48,451 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-25 22:17:48,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706789743] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-25 22:17:48,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 5 imperfect interpolant sequences. [2022-11-25 22:17:48,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6, 6, 6, 8] total 17 [2022-11-25 22:17:48,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142909356] [2022-11-25 22:17:48,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:48,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 22:17:48,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:48,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 22:17:48,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2022-11-25 22:17:48,453 INFO L87 Difference]: Start difference. First operand 85 states and 113 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:48,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:48,812 INFO L93 Difference]: Finished difference Result 91 states and 118 transitions. [2022-11-25 22:17:48,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:17:48,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2022-11-25 22:17:48,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:48,813 INFO L225 Difference]: With dead ends: 91 [2022-11-25 22:17:48,813 INFO L226 Difference]: Without dead ends: 73 [2022-11-25 22:17:48,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2022-11-25 22:17:48,815 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 2 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:48,815 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 296 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 22:17:48,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-25 22:17:48,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-11-25 22:17:48,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 62 states have (on average 1.2903225806451613) internal successors, (80), 65 states have internal predecessors, (80), 5 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2022-11-25 22:17:48,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 95 transitions. [2022-11-25 22:17:48,825 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 95 transitions. Word has length 55 [2022-11-25 22:17:48,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:48,826 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 95 transitions. [2022-11-25 22:17:48,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-25 22:17:48,826 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2022-11-25 22:17:48,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-25 22:17:48,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:48,828 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:48,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:49,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:49,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 (19)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:49,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:17:49,431 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:49,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:49,432 INFO L85 PathProgramCache]: Analyzing trace with hash -979005146, now seen corresponding path program 1 times [2022-11-25 22:17:49,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:49,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1927892827] [2022-11-25 22:17:49,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:49,432 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:17:49,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:49,433 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:49,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 (22)] Waiting until timeout for monitored process [2022-11-25 22:17:49,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:49,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-25 22:17:49,499 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:49,786 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 26 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-25 22:17:49,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-25 22:17:50,445 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:17:50,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1927892827] [2022-11-25 22:17:50,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1927892827] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:50,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1292812379] [2022-11-25 22:17:50,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:50,446 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:17:50,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:17:50,447 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:17:50,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2022-11-25 22:17:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:50,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:17:50,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:51,407 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-25 22:17:51,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:51,682 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-25 22:17:51,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1292812379] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:51,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945220226] [2022-11-25 22:17:51,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:51,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:51,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:51,683 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:17:51,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-11-25 22:17:51,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:51,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-25 22:17:51,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:51,911 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-25 22:17:51,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:17:52,213 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-11-25 22:17:52,213 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945220226] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:17:52,213 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:17:52,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8, 8, 8, 8] total 16 [2022-11-25 22:17:52,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709671994] [2022-11-25 22:17:52,214 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:17:52,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-25 22:17:52,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:17:52,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-25 22:17:52,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2022-11-25 22:17:52,217 INFO L87 Difference]: Start difference. First operand 73 states and 95 transitions. Second operand has 16 states, 16 states have (on average 5.125) internal successors, (82), 15 states have internal predecessors, (82), 3 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 22:17:57,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:57,503 INFO L93 Difference]: Finished difference Result 180 states and 238 transitions. [2022-11-25 22:17:57,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-25 22:17:57,504 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 15 states have internal predecessors, (82), 3 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 60 [2022-11-25 22:17:57,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:57,505 INFO L225 Difference]: With dead ends: 180 [2022-11-25 22:17:57,505 INFO L226 Difference]: Without dead ends: 93 [2022-11-25 22:17:57,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=294, Invalid=1112, Unknown=0, NotChecked=0, Total=1406 [2022-11-25 22:17:57,507 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 108 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:57,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 439 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-25 22:17:57,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-25 22:17:57,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 74. [2022-11-25 22:17:57,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 64 states have (on average 1.265625) internal successors, (81), 66 states have internal predecessors, (81), 5 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-25 22:17:57,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2022-11-25 22:17:57,518 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 60 [2022-11-25 22:17:57,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:57,519 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2022-11-25 22:17:57,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 5.125) internal successors, (82), 15 states have internal predecessors, (82), 3 states have call successors, (9), 2 states have call predecessors, (9), 5 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2022-11-25 22:17:57,519 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2022-11-25 22:17:57,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-25 22:17:57,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:57,520 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:17:57,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 (22)] Forceful destruction successful, exit code 0 [2022-11-25 22:17:57,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2022-11-25 22:17:57,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2022-11-25 22:17:58,133 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:17:58,133 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:17:58,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:58,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1446076250, now seen corresponding path program 1 times [2022-11-25 22:17:58,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:17:58,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110737844] [2022-11-25 22:17:58,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:58,135 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 [2022-11-25 22:17:58,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:17:58,136 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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) [2022-11-25 22:17:58,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 (25)] Waiting until timeout for monitored process [2022-11-25 22:17:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:58,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:17:58,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:17:58,775 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 26 proven. 26 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 22:17:58,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:00,096 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 36 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-25 22:18:00,096 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:18:00,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110737844] [2022-11-25 22:18:00,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110737844] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:00,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [294273493] [2022-11-25 22:18:00,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:00,097 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 22:18:00,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 22:18:00,098 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 22:18:00,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-11-25 22:18:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:00,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 22:18:00,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:01,459 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-25 22:18:01,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:02,101 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-25 22:18:02,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [294273493] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:02,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714721081] [2022-11-25 22:18:02,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:18:02,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:18:02,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:18:02,103 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:18:02,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-11-25 22:18:02,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:18:02,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 22:18:02,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:18:02,382 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-25 22:18:02,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 22:18:03,038 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2022-11-25 22:18:03,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [714721081] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 22:18:03,038 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-25 22:18:03,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9, 9, 9, 9] total 21 [2022-11-25 22:18:03,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841285863] [2022-11-25 22:18:03,038 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-25 22:18:03,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-25 22:18:03,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:18:03,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-25 22:18:03,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2022-11-25 22:18:03,041 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 3 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 22:18:08,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:18:08,856 INFO L93 Difference]: Finished difference Result 186 states and 243 transitions. [2022-11-25 22:18:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-25 22:18:08,857 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 3 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) Word has length 71 [2022-11-25 22:18:08,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:18:08,858 INFO L225 Difference]: With dead ends: 186 [2022-11-25 22:18:08,858 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 22:18:08,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 402 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=267, Invalid=1065, Unknown=0, NotChecked=0, Total=1332 [2022-11-25 22:18:08,860 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 164 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:18:08,860 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 598 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-25 22:18:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 22:18:08,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 22:18:08,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-25 22:18:08,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 22:18:08,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2022-11-25 22:18:08,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:18:08,861 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 22:18:08,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.571428571428571) internal successors, (96), 20 states have internal predecessors, (96), 3 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2022-11-25 22:18:08,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 22:18:08,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 22:18:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-25 22:18:08,864 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-25 22:18:08,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:09,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2022-11-25 22:18:09,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 (25)] Ended with exit code 0 [2022-11-25 22:18:09,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/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 [2022-11-25 22:18:09,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 22:18:15,067 INFO L895 garLoopResultBuilder]: At program point L122(lines 71 124) the Hoare annotation is: (or (and (= base2flt_~e |base2flt_#in~e|) (= base2flt_~__retres4~0 (_ bv0 32)) (= base2flt_~m (bvshl (bvshl |base2flt_#in~m| (_ bv1 32)) (_ bv1 32)))) (not (= |base2flt_#in~m| (_ bv0 32))) (not (= currentRoundingMode roundNearestTiesToEven))) [2022-11-25 22:18:15,068 INFO L899 garLoopResultBuilder]: For program point L81(lines 80 95) no Hoare annotation was computed. [2022-11-25 22:18:15,068 INFO L899 garLoopResultBuilder]: For program point L102(lines 100 115) no Hoare annotation was computed. [2022-11-25 22:18:15,068 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 94) no Hoare annotation was computed. [2022-11-25 22:18:15,068 INFO L895 garLoopResultBuilder]: At program point L90-1(lines 80 95) the Hoare annotation is: (let ((.cse0 (not (= currentRoundingMode roundNearestTiesToEven)))) (and (or (not (= |base2flt_#in~m| (_ bv0 32))) .cse0) (or .cse0 (bvult base2flt_~m (_ bv16777216 32)) (not (= |base2flt_#in~m| (_ bv1 32)))))) [2022-11-25 22:18:15,068 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 118) no Hoare annotation was computed. [2022-11-25 22:18:15,068 INFO L902 garLoopResultBuilder]: At program point base2fltENTRY(lines 67 125) the Hoare annotation is: true [2022-11-25 22:18:15,068 INFO L895 garLoopResultBuilder]: At program point L116(lines 78 118) the Hoare annotation is: (or (not (= |base2flt_#in~m| (_ bv0 32))) (not (= currentRoundingMode roundNearestTiesToEven))) [2022-11-25 22:18:15,068 INFO L899 garLoopResultBuilder]: For program point base2fltFINAL(lines 67 125) no Hoare annotation was computed. [2022-11-25 22:18:15,068 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 100 115) the Hoare annotation is: (or (let ((.cse0 (not (= |base2flt_#in~e| (_ bv0 32))))) (and (or (not (bvsle base2flt_~e (_ bv4294967168 32))) .cse0) (or (not (bvsle (bvadd (_ bv4294967292 32) base2flt_~e) (_ bv4294967168 32))) .cse0) (not (bvult |base2flt_#in~m| (_ bv16777216 32))))) (not (= currentRoundingMode roundNearestTiesToEven))) [2022-11-25 22:18:15,068 INFO L899 garLoopResultBuilder]: For program point base2fltEXIT(lines 67 125) no Hoare annotation was computed. [2022-11-25 22:18:15,069 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 77) no Hoare annotation was computed. [2022-11-25 22:18:15,069 INFO L899 garLoopResultBuilder]: For program point L101(lines 100 115) no Hoare annotation was computed. [2022-11-25 22:18:15,069 INFO L895 garLoopResultBuilder]: At program point L283(line 283) the Hoare annotation is: (and (= |ULTIMATE.start_main2_~zero~0#1| (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-25 22:18:15,069 INFO L899 garLoopResultBuilder]: For program point L283-1(line 283) no Hoare annotation was computed. [2022-11-25 22:18:15,069 INFO L899 garLoopResultBuilder]: For program point L300(lines 300 309) no Hoare annotation was computed. [2022-11-25 22:18:15,069 INFO L895 garLoopResultBuilder]: At program point L300-2(lines 300 309) the Hoare annotation is: (and (= |ULTIMATE.start_main2_~tmp___0~0#1| (_ bv0 32)) (= |ULTIMATE.start_main2_~tmp___1~0#1| (_ bv0 32)) (= |ULTIMATE.start_main2_~zero~0#1| (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-25 22:18:15,069 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 207) no Hoare annotation was computed. [2022-11-25 22:18:15,069 INFO L899 garLoopResultBuilder]: For program point L201-2(lines 200 261) no Hoare annotation was computed. [2022-11-25 22:18:15,069 INFO L895 garLoopResultBuilder]: At program point L259(lines 200 261) the Hoare annotation is: (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven))) (or (and (= (bvadd (_ bv1 32) |ULTIMATE.start_main2_~sa~0#1|) (_ bv0 32)) .cse0) (and (= (_ bv1 32) |ULTIMATE.start_main2_~sa~0#1|) (= |ULTIMATE.start_main2_~tmp~2#1| (_ bv1 32)) .cse0) (and (= |ULTIMATE.start_mulflt_~__retres10~1#1| (_ bv0 32)) (= |ULTIMATE.start_main2_~zero~0#1| (_ bv0 32)) .cse0))) [2022-11-25 22:18:15,069 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 22:18:15,070 INFO L902 garLoopResultBuilder]: At program point L317(lines 263 319) the Hoare annotation is: true [2022-11-25 22:18:15,070 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 22:18:15,070 INFO L895 garLoopResultBuilder]: At program point L284(line 284) the Hoare annotation is: (and (= |ULTIMATE.start_main2_~zero~0#1| (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-25 22:18:15,070 INFO L899 garLoopResultBuilder]: For program point L284-1(line 284) no Hoare annotation was computed. [2022-11-25 22:18:15,070 INFO L895 garLoopResultBuilder]: At program point L260(lines 190 262) the Hoare annotation is: (let ((.cse0 (= currentRoundingMode roundNearestTiesToEven))) (or (and (= (bvadd (_ bv1 32) |ULTIMATE.start_main2_~sa~0#1|) (_ bv0 32)) .cse0) (and (= (_ bv1 32) |ULTIMATE.start_main2_~sa~0#1|) (= |ULTIMATE.start_main2_~tmp~2#1| (_ bv1 32)) .cse0) (and (= (_ bv0 32) |ULTIMATE.start_mulflt_#res#1|) (= |ULTIMATE.start_mulflt_~__retres10~1#1| (_ bv0 32)) (= |ULTIMATE.start_main2_~zero~0#1| (_ bv0 32)) .cse0))) [2022-11-25 22:18:15,070 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 233) no Hoare annotation was computed. [2022-11-25 22:18:15,070 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 295) no Hoare annotation was computed. [2022-11-25 22:18:15,070 INFO L899 garLoopResultBuilder]: For program point L286-2(lines 286 295) no Hoare annotation was computed. [2022-11-25 22:18:15,070 INFO L899 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2022-11-25 22:18:15,071 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 307) no Hoare annotation was computed. [2022-11-25 22:18:15,071 INFO L899 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2022-11-25 22:18:15,071 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 254) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point L303-2(lines 303 307) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point L237-2(lines 237 254) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 326) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point L246(lines 246 251) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point L238(lines 238 243) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 227) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2022-11-25 22:18:15,072 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 325) no Hoare annotation was computed. [2022-11-25 22:18:15,073 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2022-11-25 22:18:15,073 INFO L899 garLoopResultBuilder]: For program point L289(lines 289 293) no Hoare annotation was computed. [2022-11-25 22:18:15,073 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 22:18:15,073 INFO L899 garLoopResultBuilder]: For program point L289-2(lines 289 293) no Hoare annotation was computed. [2022-11-25 22:18:15,073 INFO L895 garLoopResultBuilder]: At program point L281(line 281) the Hoare annotation is: (= currentRoundingMode roundNearestTiesToEven) [2022-11-25 22:18:15,073 INFO L899 garLoopResultBuilder]: For program point L281-1(line 281) no Hoare annotation was computed. [2022-11-25 22:18:15,073 INFO L902 garLoopResultBuilder]: At program point L50(lines 37 51) the Hoare annotation is: true [2022-11-25 22:18:15,073 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2022-11-25 22:18:15,073 INFO L895 garLoopResultBuilder]: At program point L282(line 282) the Hoare annotation is: (and (= |ULTIMATE.start_main2_~zero~0#1| (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-25 22:18:15,074 INFO L899 garLoopResultBuilder]: For program point L282-1(line 282) no Hoare annotation was computed. [2022-11-25 22:18:15,074 INFO L899 garLoopResultBuilder]: For program point L299(lines 299 315) no Hoare annotation was computed. [2022-11-25 22:18:15,074 INFO L899 garLoopResultBuilder]: For program point L299-1(lines 299 315) no Hoare annotation was computed. [2022-11-25 22:18:15,074 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 58 63) the Hoare annotation is: true [2022-11-25 22:18:15,074 INFO L899 garLoopResultBuilder]: For program point L60(line 60) no Hoare annotation was computed. [2022-11-25 22:18:15,074 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 61) no Hoare annotation was computed. [2022-11-25 22:18:15,074 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 58 63) no Hoare annotation was computed. [2022-11-25 22:18:15,074 INFO L899 garLoopResultBuilder]: For program point L59-2(lines 58 63) no Hoare annotation was computed. [2022-11-25 22:18:15,074 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 60) no Hoare annotation was computed. [2022-11-25 22:18:15,077 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:18:15,079 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:18:15,087 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,087 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,088 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,093 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,094 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,094 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,095 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,095 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,095 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,096 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,096 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,096 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,097 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,097 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,097 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,097 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,098 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,098 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,098 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,105 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,105 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,105 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:18:15 BoogieIcfgContainer [2022-11-25 22:18:15,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:18:15,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:18:15,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:18:15,107 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:18:15,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:14:38" (3/4) ... [2022-11-25 22:18:15,111 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 22:18:15,117 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure base2flt [2022-11-25 22:18:15,117 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-11-25 22:18:15,123 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-25 22:18:15,123 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-25 22:18:15,124 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 22:18:15,124 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 22:18:15,144 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((e == \old(e) && __retres4 == 0bv32) && m == ~bvshl32(~bvshl32(\old(m), 1bv32), 1bv32)) || !(\old(m) == 0bv32)) || !(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) [2022-11-25 22:18:15,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(m) == 0bv32) || !(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven)) && ((!(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ~bvult32(m, 16777216bv32)) || !(\old(m) == 1bv32)) [2022-11-25 22:18:15,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!~bvsle32(e, 4294967168bv32) || !(\old(e) == 0bv32)) && (!~bvsle32(~bvadd128(4294967292bv32, e), 4294967168bv32) || !(\old(e) == 0bv32))) && !~bvult32(\old(m), 16777216bv32)) || !(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) [2022-11-25 22:18:15,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(m) == 0bv32) || !(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) [2022-11-25 22:18:15,146 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~bvadd128(1bv32, sa) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ((1bv32 == sa && tmp == 1bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven)) || (((0bv32 == \result && __retres10 == 0bv32) && zero == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) [2022-11-25 22:18:15,164 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:18:15,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:18:15,165 INFO L158 Benchmark]: Toolchain (without parser) took 219687.97ms. Allocated memory was 98.6MB in the beginning and 209.7MB in the end (delta: 111.1MB). Free memory was 76.3MB in the beginning and 130.0MB in the end (delta: -53.8MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2022-11-25 22:18:15,165 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:18:15,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 357.92ms. Allocated memory is still 98.6MB. Free memory was 76.3MB in the beginning and 61.6MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:18:15,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.38ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 59.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:18:15,166 INFO L158 Benchmark]: Boogie Preprocessor took 53.79ms. Allocated memory is still 98.6MB. Free memory was 59.5MB in the beginning and 57.8MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:18:15,167 INFO L158 Benchmark]: RCFGBuilder took 2917.71ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 71.5MB in the end (delta: -13.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-11-25 22:18:15,167 INFO L158 Benchmark]: TraceAbstraction took 216250.21ms. Allocated memory was 98.6MB in the beginning and 209.7MB in the end (delta: 111.1MB). Free memory was 70.7MB in the beginning and 134.2MB in the end (delta: -63.5MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. [2022-11-25 22:18:15,167 INFO L158 Benchmark]: Witness Printer took 57.53ms. Allocated memory is still 209.7MB. Free memory was 134.2MB in the beginning and 130.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:18:15,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory is still 75.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 357.92ms. Allocated memory is still 98.6MB. Free memory was 76.3MB in the beginning and 61.6MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.38ms. Allocated memory is still 98.6MB. Free memory was 61.6MB in the beginning and 59.5MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.79ms. Allocated memory is still 98.6MB. Free memory was 59.5MB in the beginning and 57.8MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2917.71ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 71.5MB in the end (delta: -13.7MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. * TraceAbstraction took 216250.21ms. Allocated memory was 98.6MB in the beginning and 209.7MB in the end (delta: 111.1MB). Free memory was 70.7MB in the beginning and 134.2MB in the end (delta: -63.5MB). Peak memory consumption was 100.7MB. Max. memory is 16.1GB. * Witness Printer took 57.53ms. Allocated memory is still 209.7MB. Free memory was 134.2MB in the beginning and 130.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 48]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 60]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 216.2s, OverallIterations: 14, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 571 SdHoareTripleChecker+Valid, 11.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 571 mSDsluCounter, 3500 SdHoareTripleChecker+Invalid, 10.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 138 IncrementalHoareTripleChecker+Unchecked, 2678 mSDsCounter, 56 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1423 IncrementalHoareTripleChecker+Invalid, 1618 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 56 mSolverCounterUnsat, 822 mSDtfsCounter, 1423 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2269 GetRequests, 2093 SyntacticMatches, 4 SemanticMatches, 172 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 612 ImplicationChecksByTransitivity, 25.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=11, InterpolantAutomatonStates: 134, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 105 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 137 PreInvPairs, 382 NumberOfFragments, 188 HoareAnnotationTreeSize, 137 FomulaSimplifications, 78586 FormulaSimplificationTreeSizeReduction, 3.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 2145 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 112.0s SatisfiabilityAnalysisTime, 69.6s InterpolantComputationTime, 1321 NumberOfCodeBlocks, 1321 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2196 ConstructedInterpolants, 2 QuantifiedInterpolants, 4291 SizeOfPredicates, 58 NumberOfNonLiveVariables, 2478 ConjunctsInSsa, 137 ConjunctsInUnsatCore, 42 InterpolantComputations, 11 PerfectInterpolantSequences, 1225/1479 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 200]: Loop Invariant [2022-11-25 22:18:15,179 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,180 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,180 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,180 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,181 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,181 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~bvadd128(1bv32, sa) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ((1bv32 == sa && tmp == 1bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven)) || ((__retres10 == 0bv32 && zero == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 263]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 78]: Loop Invariant [2022-11-25 22:18:15,181 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,182 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(\old(m) == 0bv32) || !(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 71]: Loop Invariant [2022-11-25 22:18:15,182 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,183 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((e == \old(e) && __retres4 == 0bv32) && m == ~bvshl32(~bvshl32(\old(m), 1bv32), 1bv32)) || !(\old(m) == 0bv32)) || !(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 100]: Loop Invariant [2022-11-25 22:18:15,183 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,184 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((!~bvsle32(e, 4294967168bv32) || !(\old(e) == 0bv32)) && (!~bvsle32(~bvadd128(4294967292bv32, e), 4294967168bv32) || !(\old(e) == 0bv32))) && !~bvult32(\old(m), 16777216bv32)) || !(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 80]: Loop Invariant [2022-11-25 22:18:15,184 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,185 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,185 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,185 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(\old(m) == 0bv32) || !(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven)) && ((!(unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ~bvult32(m, 16777216bv32)) || !(\old(m) == 1bv32)) - InvariantResult [Line: 190]: Loop Invariant [2022-11-25 22:18:15,186 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,186 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,186 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,187 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,187 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-25 22:18:15,187 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~bvadd128(1bv32, sa) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) || ((1bv32 == sa && tmp == 1bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven)) || (((0bv32 == \result && __retres10 == 0bv32) && zero == 0bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) RESULT: Ultimate proved your program to be correct! [2022-11-25 22:18:15,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cafc48d0-9a29-46c3-a946-a9deb3a5ef41/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE