./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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_f116ebc1-0213-4814-95f3-076610147cb6/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 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 --- 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 [2022-11-26 00:24:06,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:24:06,609 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:24:06,643 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:24:06,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:24:06,648 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:24:06,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:24:06,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:24:06,661 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:24:06,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:24:06,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:24:06,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:24:06,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:24:06,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:24:06,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:24:06,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:24:06,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:24:06,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:24:06,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:24:06,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:24:06,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:24:06,699 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:24:06,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:24:06,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:24:06,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:24:06,717 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:24:06,717 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:24:06,718 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:24:06,720 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:24:06,721 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:24:06,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:24:06,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:24:06,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:24:06,729 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:24:06,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:24:06,731 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:24:06,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:24:06,732 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:24:06,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:24:06,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:24:06,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:24:06,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:24:06,784 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:24:06,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:24:06,785 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:24:06,786 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:24:06,787 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:24:06,787 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:24:06,787 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:24:06,788 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:24:06,788 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:24:06,788 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:24:06,789 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:24:06,790 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:24:06,790 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:24:06,790 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:24:06,790 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:24:06,791 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:24:06,791 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:24:06,791 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:24:06,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:24:06,792 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:24:06,793 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:24:06,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:24:06,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:24:06,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:24:06,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:24:06,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:24:06,795 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:24:06,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:24:06,796 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:24:06,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:24:06,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:24:06,797 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:24:06,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:06,797 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:24:06,798 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:24:06,798 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:24:06,798 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:24:06,798 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:24:06,799 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:24:06,799 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:24:06,799 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:24:06,799 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_f116ebc1-0213-4814-95f3-076610147cb6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 [2022-11-26 00:24:07,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:24:07,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:24:07,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:24:07,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:24:07,146 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:24:07,148 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2022-11-26 00:24:10,292 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:24:10,564 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:24:10,565 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2022-11-26 00:24:10,574 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/data/af931811a/9d9d6f671e594ae28271b34e93ca5eba/FLAGbe51f2e65 [2022-11-26 00:24:10,590 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/data/af931811a/9d9d6f671e594ae28271b34e93ca5eba [2022-11-26 00:24:10,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:24:10,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:24:10,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:10,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:24:10,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:24:10,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:10,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bdba50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10, skipping insertion in model container [2022-11-26 00:24:10,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:10,623 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:24:10,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:24:10,902 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_f116ebc1-0213-4814-95f3-076610147cb6/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2022-11-26 00:24:10,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:10,924 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:24:10,975 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_f116ebc1-0213-4814-95f3-076610147cb6/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2022-11-26 00:24:10,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:10,994 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:24:10,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10 WrapperNode [2022-11-26 00:24:10,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:10,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:10,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:24:10,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:24:11,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,064 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2022-11-26 00:24:11,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:11,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:24:11,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:24:11,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:24:11,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,095 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:24:11,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:24:11,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:24:11,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:24:11,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (1/1) ... [2022-11-26 00:24:11,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:11,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:11,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:24:11,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:24:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:24:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:24:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:24:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-26 00:24:11,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:24:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-26 00:24:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:24:11,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:24:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:24:11,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:24:11,268 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:24:11,270 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:24:11,591 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:24:11,757 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:24:11,758 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-26 00:24:11,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:11 BoogieIcfgContainer [2022-11-26 00:24:11,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:24:11,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:24:11,764 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:24:11,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:24:11,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:24:10" (1/3) ... [2022-11-26 00:24:11,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207726fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:11, skipping insertion in model container [2022-11-26 00:24:11,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:10" (2/3) ... [2022-11-26 00:24:11,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207726fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:11, skipping insertion in model container [2022-11-26 00:24:11,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:11" (3/3) ... [2022-11-26 00:24:11,782 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a.c [2022-11-26 00:24:11,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:24:11,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:24:11,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:24:11,879 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;@51780a56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:24:11,879 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:24:11,883 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 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) [2022-11-26 00:24:11,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:24:11,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:11,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:11,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:11,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:11,897 INFO L85 PathProgramCache]: Analyzing trace with hash 391450360, now seen corresponding path program 1 times [2022-11-26 00:24:11,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:11,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905550471] [2022-11-26 00:24:11,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:11,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:12,084 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:24:12,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905550471] [2022-11-26 00:24:12,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905550471] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:12,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:12,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:12,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798562641] [2022-11-26 00:24:12,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:12,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:24:12,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:24:12,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:24:12,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:24:12,131 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 18 states have internal predecessors, (28), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-26 00:24:12,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:12,189 INFO L93 Difference]: Finished difference Result 37 states and 55 transitions. [2022-11-26 00:24:12,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:24:12,191 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2022-11-26 00:24:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:12,200 INFO L225 Difference]: With dead ends: 37 [2022-11-26 00:24:12,200 INFO L226 Difference]: Without dead ends: 17 [2022-11-26 00:24:12,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:24:12,215 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:12,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:12,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-26 00:24:12,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-26 00:24:12,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-11-26 00:24:12,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-26 00:24:12,255 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 9 [2022-11-26 00:24:12,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:12,256 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-26 00:24:12,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-26 00:24:12,257 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-26 00:24:12,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:24:12,258 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:12,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:12,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:24:12,260 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:12,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:12,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1669256746, now seen corresponding path program 1 times [2022-11-26 00:24:12,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:24:12,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142738991] [2022-11-26 00:24:12,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:12,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:24:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:24:12,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:24:12,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:24:12,500 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:24:12,501 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:24:12,503 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:24:12,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:24:12,511 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:24:12,515 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:24:12,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:24:12 BoogieIcfgContainer [2022-11-26 00:24:12,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:24:12,559 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:24:12,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:24:12,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:24:12,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:11" (3/4) ... [2022-11-26 00:24:12,564 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:24:12,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:24:12,565 INFO L158 Benchmark]: Toolchain (without parser) took 1970.08ms. Allocated memory is still 190.8MB. Free memory was 158.1MB in the beginning and 94.2MB in the end (delta: 63.9MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2022-11-26 00:24:12,565 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 144.7MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:24:12,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.13ms. Allocated memory is still 190.8MB. Free memory was 158.1MB in the beginning and 146.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:24:12,571 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.45ms. Allocated memory is still 190.8MB. Free memory was 146.6MB in the beginning and 145.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:24:12,574 INFO L158 Benchmark]: Boogie Preprocessor took 34.24ms. Allocated memory is still 190.8MB. Free memory was 145.5MB in the beginning and 143.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:24:12,587 INFO L158 Benchmark]: RCFGBuilder took 660.99ms. Allocated memory is still 190.8MB. Free memory was 143.6MB in the beginning and 124.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:24:12,589 INFO L158 Benchmark]: TraceAbstraction took 793.91ms. Allocated memory is still 190.8MB. Free memory was 123.6MB in the beginning and 94.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-26 00:24:12,590 INFO L158 Benchmark]: Witness Printer took 5.50ms. Allocated memory is still 190.8MB. Free memory is still 94.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:24:12,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 144.7MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.13ms. Allocated memory is still 190.8MB. Free memory was 158.1MB in the beginning and 146.6MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.45ms. Allocated memory is still 190.8MB. Free memory was 146.6MB in the beginning and 145.5MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.24ms. Allocated memory is still 190.8MB. Free memory was 145.5MB in the beginning and 143.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 660.99ms. Allocated memory is still 190.8MB. Free memory was 143.6MB in the beginning and 124.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 793.91ms. Allocated memory is still 190.8MB. Free memory was 123.6MB in the beginning and 94.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 5.50ms. Allocated memory is still 190.8MB. Free memory is still 94.2MB. There was no memory consumed. 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: 82]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 46, overapproximation of bitwiseAnd at line 66. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; [L77] float x = 1.0f / 0.0f; [L78] CALL, EXPR floor_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [\old(x)=1000000000000000000000000000011, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000011] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [\old(x)=1000000000000000000000000000011, huge_floor=1000000000000000000000000000000, i=2139095040, i0=2139095040, j0=128, x=1000000000000000000000000000011] [L25] COND FALSE !(j0 < 23) [L45] COND TRUE !((ix) < 0x7f800000L) [L46] return x + x; VAL [\old(x)=1000000000000000000000000000011, \result=1000000000000000000000000000011, huge_floor=1000000000000000000000000000000, i=2139095040, i0=2139095040, j0=128, x=1000000000000000000000000000011] [L78] RET, EXPR floor_float(x) [L78] float res = floor_float(x); [L81] CALL, EXPR isinf_float(res) [L60] __int32_t ix; VAL [\old(x)=1000000000000000000000000000011, huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000011] [L62] ieee_float_shape_type gf_u; [L63] gf_u.value = (x) [L64] EXPR gf_u.word [L64] (ix) = gf_u.word [L66] ix &= 0x7fffffff [L67] return ((ix) == 0x7f800000L); [L81] RET, EXPR isinf_float(res) [L81] COND TRUE !isinf_float(res) [L82] reach_error() VAL [huge_floor=1000000000000000000000000000000, res=1000000000000000000000000000011, x=1000000000000000000000000000011] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 15 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2022-11-26 00:24:12,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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_f116ebc1-0213-4814-95f3-076610147cb6/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 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 --- 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 [2022-11-26 00:24:15,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:24:15,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:24:15,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:24:15,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:24:15,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:24:15,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:24:15,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:24:15,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:24:15,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:24:15,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:24:15,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:24:15,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:24:15,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:24:15,327 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:24:15,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:24:15,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:24:15,330 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:24:15,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:24:15,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:24:15,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:24:15,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:24:15,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:24:15,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:24:15,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:24:15,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:24:15,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:24:15,354 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:24:15,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:24:15,356 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:24:15,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:24:15,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:24:15,358 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:24:15,359 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:24:15,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:24:15,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:24:15,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:24:15,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:24:15,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:24:15,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:24:15,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:24:15,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-26 00:24:15,419 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:24:15,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:24:15,421 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:24:15,421 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:24:15,422 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:24:15,422 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:24:15,422 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:24:15,422 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:24:15,422 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:24:15,423 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:24:15,423 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:24:15,423 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:24:15,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:24:15,424 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:24:15,424 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:24:15,424 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:24:15,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:24:15,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:24:15,425 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:24:15,425 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:24:15,425 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:24:15,425 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:24:15,426 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:24:15,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:24:15,426 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:24:15,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:24:15,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:24:15,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:24:15,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:24:15,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:15,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:24:15,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:24:15,428 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:24:15,428 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:24:15,428 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:24:15,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:24:15,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:24:15,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:24:15,429 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_f116ebc1-0213-4814-95f3-076610147cb6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 [2022-11-26 00:24:15,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:24:15,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:24:15,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:24:15,885 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:24:15,886 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:24:15,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2022-11-26 00:24:18,988 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:24:19,337 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:24:19,338 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2022-11-26 00:24:19,347 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/data/9c137e856/371562f836094bff878b029ec3a3ad90/FLAG4ec8d9dc2 [2022-11-26 00:24:19,386 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/data/9c137e856/371562f836094bff878b029ec3a3ad90 [2022-11-26 00:24:19,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:24:19,396 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:24:19,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:19,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:24:19,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:24:19,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c258e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19, skipping insertion in model container [2022-11-26 00:24:19,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:24:19,447 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:24:19,642 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_f116ebc1-0213-4814-95f3-076610147cb6/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2022-11-26 00:24:19,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:19,666 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:24:19,724 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_f116ebc1-0213-4814-95f3-076610147cb6/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2022-11-26 00:24:19,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:24:19,749 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:24:19,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19 WrapperNode [2022-11-26 00:24:19,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:24:19,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:19,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:24:19,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:24:19,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,827 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2022-11-26 00:24:19,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:24:19,829 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:24:19,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:24:19,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:24:19,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,850 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,868 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:24:19,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:24:19,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:24:19,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:24:19,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (1/1) ... [2022-11-26 00:24:19,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:24:19,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:24:19,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:24:19,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:24:19,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:24:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:24:19,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:24:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-26 00:24:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 00:24:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:24:19,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:24:19,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-26 00:24:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:24:19,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:24:20,121 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:24:20,124 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:24:20,807 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:24:20,813 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:24:20,813 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-26 00:24:20,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:20 BoogieIcfgContainer [2022-11-26 00:24:20,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:24:20,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:24:20,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:24:20,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:24:20,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:24:19" (1/3) ... [2022-11-26 00:24:20,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785ec4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:20, skipping insertion in model container [2022-11-26 00:24:20,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:24:19" (2/3) ... [2022-11-26 00:24:20,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785ec4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:24:20, skipping insertion in model container [2022-11-26 00:24:20,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:24:20" (3/3) ... [2022-11-26 00:24:20,830 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a.c [2022-11-26 00:24:20,856 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:24:20,856 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:24:20,924 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:24:20,931 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;@414f506d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:24:20,931 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:24:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 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) [2022-11-26 00:24:20,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:24:20,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:20,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:20,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:20,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:20,951 INFO L85 PathProgramCache]: Analyzing trace with hash -2064187560, now seen corresponding path program 1 times [2022-11-26 00:24:20,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:20,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064110947] [2022-11-26 00:24:20,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:20,968 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 [2022-11-26 00:24:20,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:20,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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) [2022-11-26 00:24:20,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:21,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:24:21,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:21,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:21,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:21,143 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:21,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064110947] [2022-11-26 00:24:21,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064110947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:21,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:21,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:24:21,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930983226] [2022-11-26 00:24:21,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:21,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:24:21,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:21,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:24:21,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:24:21,187 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 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) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-26 00:24:21,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:21,208 INFO L93 Difference]: Finished difference Result 56 states and 86 transitions. [2022-11-26 00:24:21,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:24:21,212 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 12 [2022-11-26 00:24:21,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:21,231 INFO L225 Difference]: With dead ends: 56 [2022-11-26 00:24:21,232 INFO L226 Difference]: Without dead ends: 26 [2022-11-26 00:24:21,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:24:21,245 INFO L413 NwaCegarLoop]: 37 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, 37 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 [2022-11-26 00:24:21,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:24:21,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-26 00:24:21,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-26 00:24:21,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 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) [2022-11-26 00:24:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2022-11-26 00:24:21,296 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 12 [2022-11-26 00:24:21,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:21,297 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2022-11-26 00:24:21,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-11-26 00:24:21,298 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-11-26 00:24:21,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:24:21,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:21,300 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:21,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:21,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:21,516 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:21,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:21,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1026834198, now seen corresponding path program 1 times [2022-11-26 00:24:21,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:21,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987067871] [2022-11-26 00:24:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:21,518 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 [2022-11-26 00:24:21,518 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:21,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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) [2022-11-26 00:24:21,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:21,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:21,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-26 00:24:21,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:21,993 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:21,993 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:21,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987067871] [2022-11-26 00:24:21,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [987067871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:21,994 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:21,994 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:24:21,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970614909] [2022-11-26 00:24:21,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:21,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-26 00:24:21,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:21,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-26 00:24:21,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:24:21,997 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-11-26 00:24:22,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:22,569 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2022-11-26 00:24:22,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:24:22,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2022-11-26 00:24:22,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:22,571 INFO L225 Difference]: With dead ends: 49 [2022-11-26 00:24:22,571 INFO L226 Difference]: Without dead ends: 36 [2022-11-26 00:24:22,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:24:22,573 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 82 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:22,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 36 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-26 00:24:22,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-26 00:24:22,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 25. [2022-11-26 00:24:22,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 24 states have internal predecessors, (29), 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) [2022-11-26 00:24:22,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2022-11-26 00:24:22,582 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 14 [2022-11-26 00:24:22,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:22,583 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2022-11-26 00:24:22,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-11-26 00:24:22,583 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2022-11-26 00:24:22,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:24:22,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:22,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:22,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:22,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:22,800 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:22,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:22,801 INFO L85 PathProgramCache]: Analyzing trace with hash -217487572, now seen corresponding path program 1 times [2022-11-26 00:24:22,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:22,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402253064] [2022-11-26 00:24:22,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:22,802 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 [2022-11-26 00:24:22,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:22,805 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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) [2022-11-26 00:24:22,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:24:22,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-26 00:24:22,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:24:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:24:23,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:24:23,213 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:24:23,213 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402253064] [2022-11-26 00:24:23,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402253064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:24:23,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:24:23,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-26 00:24:23,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389332737] [2022-11-26 00:24:23,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:24:23,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:24:23,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:24:23,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:24:23,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-26 00:24:23,225 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-26 00:24:23,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:24:23,971 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-11-26 00:24:23,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-26 00:24:23,972 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 14 [2022-11-26 00:24:23,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:24:23,972 INFO L225 Difference]: With dead ends: 33 [2022-11-26 00:24:23,973 INFO L226 Difference]: Without dead ends: 24 [2022-11-26 00:24:23,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-11-26 00:24:23,974 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 39 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-26 00:24:23,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 114 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-26 00:24:23,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-26 00:24:23,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-26 00:24:23,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 23 states have internal predecessors, (26), 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) [2022-11-26 00:24:23,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-11-26 00:24:23,982 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 14 [2022-11-26 00:24:23,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:24:23,982 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-11-26 00:24:23,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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) [2022-11-26 00:24:23,983 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-11-26 00:24:23,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-26 00:24:23,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:24:23,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:24:24,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:24,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:24,199 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:24:24,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:24:24,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1158240359, now seen corresponding path program 1 times [2022-11-26 00:24:24,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:24:24,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535404856] [2022-11-26 00:24:24,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:24:24,202 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 [2022-11-26 00:24:24,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:24:24,205 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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) [2022-11-26 00:24:24,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:24,366 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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)] Exception during sending of exit command (exit): Broken pipe [2022-11-26 00:24:24,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 139 [2022-11-26 00:24:24,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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 [2022-11-26 00:24:24,568 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-26 00:24:24,571 INFO L158 Benchmark]: Toolchain (without parser) took 5175.49ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 53.3MB in the beginning and 74.0MB in the end (delta: -20.7MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-11-26 00:24:24,571 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 75.5MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:24:24,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.94ms. Allocated memory is still 75.5MB. Free memory was 53.3MB in the beginning and 41.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:24:24,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.54ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 39.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:24:24,576 INFO L158 Benchmark]: Boogie Preprocessor took 43.73ms. Allocated memory is still 75.5MB. Free memory was 39.9MB in the beginning and 38.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:24:24,577 INFO L158 Benchmark]: RCFGBuilder took 946.66ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 38.1MB in the beginning and 74.7MB in the end (delta: -36.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-11-26 00:24:24,577 INFO L158 Benchmark]: TraceAbstraction took 3746.99ms. Allocated memory is still 102.8MB. Free memory was 74.3MB in the beginning and 74.0MB in the end (delta: 249.8kB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-11-26 00:24:24,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 75.5MB. Free memory is still 53.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.94ms. Allocated memory is still 75.5MB. Free memory was 53.3MB in the beginning and 41.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.54ms. Allocated memory is still 75.5MB. Free memory was 41.8MB in the beginning and 39.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.73ms. Allocated memory is still 75.5MB. Free memory was 39.9MB in the beginning and 38.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 946.66ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 38.1MB in the beginning and 74.7MB in the end (delta: -36.7MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3746.99ms. Allocated memory is still 102.8MB. Free memory was 74.3MB in the beginning and 74.0MB in the end (delta: 249.8kB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-26 00:24:24,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f116ebc1-0213-4814-95f3-076610147cb6/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) with exit command (exit)) Received EOF on stdin. No stderr output.