./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh --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 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 --- 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-2329fc7 [2022-12-14 08:44:52,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:44:52,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:44:52,738 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:44:52,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:44:52,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:44:52,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:44:52,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:44:52,743 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:44:52,744 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:44:52,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:44:52,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:44:52,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:44:52,747 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:44:52,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:44:52,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:44:52,750 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:44:52,751 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:44:52,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:44:52,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:44:52,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:44:52,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:44:52,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:44:52,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:44:52,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:44:52,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:44:52,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:44:52,769 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:44:52,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:44:52,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:44:52,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:44:52,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:44:52,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:44:52,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:44:52,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:44:52,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:44:52,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:44:52,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:44:52,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:44:52,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:44:52,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:44:52,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 08:44:52,804 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:44:52,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:44:52,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:44:52,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:44:52,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:44:52,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:44:52,806 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:44:52,806 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:44:52,806 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:44:52,807 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:44:52,807 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:44:52,807 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:44:52,807 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:44:52,807 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:44:52,807 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:44:52,808 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:44:52,808 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:44:52,808 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:44:52,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:44:52,809 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:44:52,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:44:52,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:44:52,809 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:44:52,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:44:52,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:44:52,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:44:52,810 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:44:52,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:44:52,810 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:44:52,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:44:52,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:44:52,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:44:52,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:44:52,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:44:52,811 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:44:52,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:44:52,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:44:52,812 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:44:52,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:44:52,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:44:52,812 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:44:52,812 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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 [2022-12-14 08:44:53,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:44:53,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:44:53,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:44:53,040 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:44:53,040 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:44:53,041 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2022-12-14 08:44:55,550 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:44:55,728 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:44:55,729 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2022-12-14 08:44:55,735 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/data/849ed3070/d4b4172292b54cf2a30886ed54e01269/FLAG382e28e13 [2022-12-14 08:44:56,124 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/data/849ed3070/d4b4172292b54cf2a30886ed54e01269 [2022-12-14 08:44:56,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:44:56,127 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:44:56,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:44:56,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:44:56,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:44:56,131 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e243f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56, skipping insertion in model container [2022-12-14 08:44:56,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:44:56,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:44:56,408 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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2022-12-14 08:44:56,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:44:56,440 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:44:56,513 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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2022-12-14 08:44:56,513 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:44:56,544 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:44:56,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56 WrapperNode [2022-12-14 08:44:56,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:44:56,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:44:56,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:44:56,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:44:56,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,621 INFO L138 Inliner]: procedures = 25, calls = 519, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 1054 [2022-12-14 08:44:56,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:44:56,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:44:56,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:44:56,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:44:56,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,674 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:44:56,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:44:56,685 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:44:56,685 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:44:56,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (1/1) ... [2022-12-14 08:44:56,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:44:56,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:44:56,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:44:56,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:44:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:44:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:44:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-12-14 08:44:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 08:44:56,747 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-12-14 08:44:56,747 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-12-14 08:44:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-12-14 08:44:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2022-12-14 08:44:56,748 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2022-12-14 08:44:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 08:44:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-12-14 08:44:56,748 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-12-14 08:44:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-12-14 08:44:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:44:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2022-12-14 08:44:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2022-12-14 08:44:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:44:56,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:44:56,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:44:56,887 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:44:56,889 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:44:57,612 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:44:57,818 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:44:57,818 INFO L300 CfgBuilder]: Removed 65 assume(true) statements. [2022-12-14 08:44:57,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:44:57 BoogieIcfgContainer [2022-12-14 08:44:57,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:44:57,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:44:57,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:44:57,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:44:57,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:44:56" (1/3) ... [2022-12-14 08:44:57,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8e202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:44:57, skipping insertion in model container [2022-12-14 08:44:57,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:44:56" (2/3) ... [2022-12-14 08:44:57,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a8e202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:44:57, skipping insertion in model container [2022-12-14 08:44:57,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:44:57" (3/3) ... [2022-12-14 08:44:57,838 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2022-12-14 08:44:57,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:44:57,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:44:57,906 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:44:57,913 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;@38d7ccbc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:44:57,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:44:57,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 150 states have (on average 1.6933333333333334) internal successors, (254), 151 states have internal predecessors, (254), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:44:57,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 08:44:57,924 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:57,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:57,925 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:44:57,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:57,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1164288437, now seen corresponding path program 1 times [2022-12-14 08:44:57,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:57,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503273315] [2022-12-14 08:44:57,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:57,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:44:58,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:44:58,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:44:58,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503273315] [2022-12-14 08:44:58,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503273315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:44:58,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:44:58,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:44:58,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785211970] [2022-12-14 08:44:58,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:44:58,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:44:58,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:44:58,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:44:58,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:44:58,165 INFO L87 Difference]: Start difference. First operand has 167 states, 150 states have (on average 1.6933333333333334) internal successors, (254), 151 states have internal predecessors, (254), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 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) [2022-12-14 08:44:58,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:44:58,306 INFO L93 Difference]: Finished difference Result 333 states and 562 transitions. [2022-12-14 08:44:58,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:44:58,309 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 [2022-12-14 08:44:58,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:44:58,317 INFO L225 Difference]: With dead ends: 333 [2022-12-14 08:44:58,317 INFO L226 Difference]: Without dead ends: 165 [2022-12-14 08:44:58,322 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 [2022-12-14 08:44:58,324 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:44:58,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 08:44:58,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-12-14 08:44:58,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-12-14 08:44:58,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 149 states have (on average 1.3691275167785235) internal successors, (204), 149 states have internal predecessors, (204), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:44:58,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2022-12-14 08:44:58,366 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 9 [2022-12-14 08:44:58,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:44:58,367 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2022-12-14 08:44:58,367 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) [2022-12-14 08:44:58,367 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2022-12-14 08:44:58,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:44:58,368 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:44:58,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:44:58,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:44:58,369 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:44:58,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:44:58,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1222426836, now seen corresponding path program 1 times [2022-12-14 08:44:58,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:44:58,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088410855] [2022-12-14 08:44:58,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:44:58,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:44:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:44:58,447 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:44:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:44:58,513 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:44:58,514 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:44:58,515 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 08:44:58,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:44:58,519 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 08:44:58,521 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:44:58,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:44:58 BoogieIcfgContainer [2022-12-14 08:44:58,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:44:58,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:44:58,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:44:58,555 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:44:58,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:44:57" (3/4) ... [2022-12-14 08:44:58,558 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:44:58,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:44:58,559 INFO L158 Benchmark]: Toolchain (without parser) took 2431.14ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 105.8MB in the beginning and 59.4MB in the end (delta: 46.3MB). Peak memory consumption was 78.7MB. Max. memory is 16.1GB. [2022-12-14 08:44:58,559 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:44:58,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 416.32ms. Allocated memory is still 140.5MB. Free memory was 105.6MB in the beginning and 78.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-12-14 08:44:58,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.13ms. Allocated memory is still 140.5MB. Free memory was 77.9MB in the beginning and 71.2MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 08:44:58,560 INFO L158 Benchmark]: Boogie Preprocessor took 61.62ms. Allocated memory is still 140.5MB. Free memory was 71.2MB in the beginning and 63.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 08:44:58,561 INFO L158 Benchmark]: RCFGBuilder took 1136.82ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 63.9MB in the beginning and 71.8MB in the end (delta: -7.9MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-12-14 08:44:58,562 INFO L158 Benchmark]: TraceAbstraction took 721.84ms. Allocated memory is still 169.9MB. Free memory was 130.7MB in the beginning and 60.5MB in the end (delta: 70.3MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2022-12-14 08:44:58,562 INFO L158 Benchmark]: Witness Printer took 3.33ms. Allocated memory is still 169.9MB. Free memory was 60.5MB in the beginning and 59.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:44:58,565 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 140.5MB. Free memory is still 112.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 416.32ms. Allocated memory is still 140.5MB. Free memory was 105.6MB in the beginning and 78.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.13ms. Allocated memory is still 140.5MB. Free memory was 77.9MB in the beginning and 71.2MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.62ms. Allocated memory is still 140.5MB. Free memory was 71.2MB in the beginning and 63.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1136.82ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 63.9MB in the beginning and 71.8MB in the end (delta: -7.9MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * TraceAbstraction took 721.84ms. Allocated memory is still 169.9MB. Free memory was 130.7MB in the beginning and 60.5MB in the end (delta: 70.3MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 3.33ms. Allocated memory is still 169.9MB. Free memory was 60.5MB in the beginning and 59.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 629]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 628, overapproximation of someUnaryDOUBLEoperation at line 497, overapproximation of bitwiseAnd at line 591, overapproximation of someUnaryFLOAToperation at line 624, overapproximation of someBinaryArithmeticFLOAToperation at line 596. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L79-L81] static const float two25_scalbn = 3.355443200e+07, twom25_scalbn = 2.9802322388e-08, huge_scalbn = 1.0e+30, tiny_scalbn = 1.0e-30; [L149] static const int init_jk_krempio[] = {4, 7, 9}; [L151-L155] static const float PIo2_krempio[] = { 1.5703125000e+00, 4.5776367188e-04, 2.5987625122e-05, 7.5437128544e-08, 6.0026650317e-11, 7.3896444519e-13, 5.3845816694e-15, 5.6378512969e-18, 8.3009228831e-20, 3.2756352257e-22, 6.3331015649e-25, }; [L157-L159] static const float zero_krempio = 0.0, one_krempio = 1.0, two8_krempio = 2.5600000000e+02, twon8_krempio = 3.9062500000e-03; [L334-L352] static const __int32_t two_over_pi_rempio[] = { 0xA2, 0xF9, 0x83, 0x6E, 0x4E, 0x44, 0x15, 0x29, 0xFC, 0x27, 0x57, 0xD1, 0xF5, 0x34, 0xDD, 0xC0, 0xDB, 0x62, 0x95, 0x99, 0x3C, 0x43, 0x90, 0x41, 0xFE, 0x51, 0x63, 0xAB, 0xDE, 0xBB, 0xC5, 0x61, 0xB7, 0x24, 0x6E, 0x3A, 0x42, 0x4D, 0xD2, 0xE0, 0x06, 0x49, 0x2E, 0xEA, 0x09, 0xD1, 0x92, 0x1C, 0xFE, 0x1D, 0xEB, 0x1C, 0xB1, 0x29, 0xA7, 0x3E, 0xE8, 0x82, 0x35, 0xF5, 0x2E, 0xBB, 0x44, 0x84, 0xE9, 0x9C, 0x70, 0x26, 0xB4, 0x5F, 0x7E, 0x41, 0x39, 0x91, 0xD6, 0x39, 0x83, 0x53, 0x39, 0xF4, 0x9C, 0x84, 0x5F, 0x8B, 0xBD, 0xF9, 0x28, 0x3B, 0x1F, 0xF8, 0x97, 0xFF, 0xDE, 0x05, 0x98, 0x0F, 0xEF, 0x2F, 0x11, 0x8B, 0x5A, 0x0A, 0x6D, 0x1F, 0x6D, 0x36, 0x7E, 0xCF, 0x27, 0xCB, 0x09, 0xB7, 0x4F, 0x46, 0x3F, 0x66, 0x9E, 0x5F, 0xEA, 0x2D, 0x75, 0x27, 0xBA, 0xC7, 0xEB, 0xE5, 0xF1, 0x7B, 0x3D, 0x07, 0x39, 0xF7, 0x8A, 0x52, 0x92, 0xEA, 0x6B, 0xFB, 0x5F, 0xB1, 0x1F, 0x8D, 0x5D, 0x08, 0x56, 0x03, 0x30, 0x46, 0xFC, 0x7B, 0x6B, 0xAB, 0xF0, 0xCF, 0xBC, 0x20, 0x9A, 0xF4, 0x36, 0x1D, 0xA9, 0xE3, 0x91, 0x61, 0x5E, 0xE6, 0x1B, 0x08, 0x65, 0x99, 0x85, 0x5F, 0x14, 0xA0, 0x68, 0x40, 0x8D, 0xFF, 0xD8, 0x80, 0x4D, 0x73, 0x27, 0x31, 0x06, 0x06, 0x15, 0x56, 0xCA, 0x73, 0xA8, 0xC9, 0x60, 0xE2, 0x7B, 0xC0, 0x8C, 0x6B, }; [L354-L360] static const __int32_t npio2_hw_rempio[] = { 0x3fc90f00, 0x40490f00, 0x4096cb00, 0x40c90f00, 0x40fb5300, 0x4116cb00, 0x412fed00, 0x41490f00, 0x41623100, 0x417b5300, 0x418a3a00, 0x4196cb00, 0x41a35c00, 0x41afed00, 0x41bc7e00, 0x41c90f00, 0x41d5a000, 0x41e23100, 0x41eec200, 0x41fb5300, 0x4203f200, 0x420a3a00, 0x42108300, 0x4216cb00, 0x421d1400, 0x42235c00, 0x4229a500, 0x422fed00, 0x42363600, 0x423c7e00, 0x4242c700, 0x42490f00}; [L362-L371] static const float zero_rempio = 0.0000000000e+00, half_rempio = 5.0000000000e-01, two8_rempio = 2.5600000000e+02, invpio2_rempio = 6.3661980629e-01, pio2_1_rempio = 1.5707855225e+00, pio2_1t_rempio = 1.0804334124e-05, pio2_2_rempio = 1.0804273188e-05, pio2_2t_rempio = 6.0770999344e-11, pio2_3_rempio = 6.0770943833e-11, pio2_3t_rempio = 6.1232342629e-17; [L491-L499] static const float one_ktan = 1.0000000000e+00, pio4_ktan = 7.8539812565e-01, pio4lo_ktan = 3.7748947079e-08, T_ktan[] = { 3.3333334327e-01, 1.3333334029e-01, 5.3968254477e-02, 2.1869488060e-02, 8.8632395491e-03, 3.5920790397e-03, 1.4562094584e-03, 5.8804126456e-04, 2.4646313977e-04, 7.8179444245e-05, 7.1407252108e-05, -1.8558637748e-05, 2.5907305826e-05, }; [L624] float x = -0.0f; [L625] CALL, EXPR tan_float(x) [L582] float y[2], z = 0.0; [L583] __int32_t n, ix; VAL [\old(x)=1000000000000000000000000000012, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000012, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L586] ieee_float_shape_type gf_u; [L587] gf_u.value = (x) [L588] EXPR gf_u.word [L588] (ix) = gf_u.word [L591] ix &= 0x7fffffff VAL [\old(x)=1000000000000000000000000000012, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000012, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L592] COND FALSE !(ix <= 0x3f490fda) VAL [\old(x)=1000000000000000000000000000012, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000012, y={13:0}, z=0, zero_krempio=0, zero_rempio=0] [L595] COND TRUE !((ix) < 0x7f800000L) [L596] return x - x; [L596] return x - x; VAL [\old(x)=1000000000000000000000000000012, half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, ix=2139095040, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000012, z=0, zero_krempio=0, zero_rempio=0] [L625] RET, EXPR tan_float(x) [L625] float res = tan_float(x); [L628] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, res=1000000000000000000000000000013, res == -0.0f && __signbit_float(res) == 1=0, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000012, zero_krempio=0, zero_rempio=0] [L628] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L629] reach_error() VAL [half_rempio=1/2, huge_floor=1000000000000000000000000000000, huge_scalbn=1000000000000000000000000000000, init_jk_krempio={4:0}, invpio2_rempio=63661980629/100000000000, npio2_hw_rempio={7:0}, one_krempio=1, one_ktan=1, pio2_1_rempio=628314209/400000000, pio2_1t_rempio=2701083531/250000000000000, pio2_2_rempio=2701068297/250000000000000, pio2_2t_rempio=3798187459/62500000000000000000, pio2_3_rempio=60770943833/1000000000000000000000, pio2_3t_rempio=61232342629/1000000000000000000000000000, PIo2_krempio={5:0}, pio4_ktan=15707962513/20000000000, pio4lo_ktan=37748947079/1000000000000000000, res=1000000000000000000000000000013, T_ktan={8:0}, tiny_scalbn=1/1000000000000000000000000000000, two25_scalbn=33554432, two8_krempio=256, two8_rempio=256, two_over_pi_rempio={6:0}, twom25_scalbn=7450580597/250000000000000000, twon8_krempio=1/256, x=1000000000000000000000000000012, zero_krempio=0, zero_rempio=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 167 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 176 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 52 IncrementalHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 176 mSDtfsCounter, 52 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=167occurred 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, 19 NumberOfCodeBlocks, 19 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 [2022-12-14 08:44:58,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh --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 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 --- 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-2329fc7 [2022-12-14 08:45:00,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:45:00,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:45:00,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:45:00,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:45:00,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:45:00,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:45:00,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:45:00,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:45:00,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:45:00,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:45:00,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:45:00,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:45:00,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:45:00,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:45:00,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:45:00,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:45:00,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:45:00,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:45:00,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:45:00,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:45:00,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:45:00,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:45:00,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:45:00,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:45:00,126 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:45:00,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:45:00,127 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:45:00,128 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:45:00,129 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:45:00,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:45:00,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:45:00,130 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:45:00,131 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:45:00,136 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:45:00,136 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:45:00,137 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:45:00,137 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:45:00,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:45:00,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:45:00,139 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:45:00,140 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 08:45:00,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:45:00,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:45:00,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:45:00,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:45:00,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:45:00,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:45:00,165 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:45:00,165 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:45:00,166 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:45:00,166 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:45:00,166 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:45:00,166 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:45:00,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:45:00,167 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 08:45:00,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 08:45:00,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:45:00,167 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:45:00,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:45:00,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:45:00,168 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:45:00,168 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 08:45:00,168 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 08:45:00,168 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 08:45:00,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:45:00,169 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:45:00,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:45:00,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:45:00,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 08:45:00,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:45:00,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:45:00,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:45:00,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:45:00,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:45:00,170 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 08:45:00,170 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 08:45:00,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:45:00,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:45:00,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 08:45:00,170 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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 [2022-12-14 08:45:00,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:45:00,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:45:00,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:45:00,407 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:45:00,408 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:45:00,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2022-12-14 08:45:03,034 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:45:03,215 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:45:03,216 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2022-12-14 08:45:03,222 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/data/7534dc58f/ac7727bcb19c41e8893a992f426bc7d7/FLAG12ead990a [2022-12-14 08:45:03,233 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/data/7534dc58f/ac7727bcb19c41e8893a992f426bc7d7 [2022-12-14 08:45:03,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:45:03,236 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:45:03,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:45:03,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:45:03,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:45:03,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff1090e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03, skipping insertion in model container [2022-12-14 08:45:03,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:45:03,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:45:03,528 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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2022-12-14 08:45:03,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:45:03,564 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:45:03,634 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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2022-12-14 08:45:03,634 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:45:03,660 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:45:03,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03 WrapperNode [2022-12-14 08:45:03,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:45:03,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:45:03,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:45:03,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:45:03,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,729 INFO L138 Inliner]: procedures = 29, calls = 519, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 1052 [2022-12-14 08:45:03,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:45:03,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:45:03,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:45:03,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:45:03,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,808 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:45:03,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:45:03,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:45:03,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:45:03,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (1/1) ... [2022-12-14 08:45:03,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:45:03,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:45:03,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:45:03,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:45:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:45:03,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 08:45:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-12-14 08:45:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:45:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-12-14 08:45:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-12-14 08:45:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-12-14 08:45:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 08:45:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2022-12-14 08:45:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2022-12-14 08:45:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-12-14 08:45:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-12-14 08:45:03,883 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-12-14 08:45:03,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-12-14 08:45:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2022-12-14 08:45:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2022-12-14 08:45:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:45:03,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:45:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 08:45:03,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:45:04,017 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:45:04,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:45:41,303 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:45:41,309 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:45:41,309 INFO L300 CfgBuilder]: Removed 65 assume(true) statements. [2022-12-14 08:45:41,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:45:41 BoogieIcfgContainer [2022-12-14 08:45:41,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:45:41,313 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:45:41,313 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:45:41,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:45:41,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:45:03" (1/3) ... [2022-12-14 08:45:41,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7cbaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:45:41, skipping insertion in model container [2022-12-14 08:45:41,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:45:03" (2/3) ... [2022-12-14 08:45:41,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d7cbaa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:45:41, skipping insertion in model container [2022-12-14 08:45:41,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:45:41" (3/3) ... [2022-12-14 08:45:41,318 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2022-12-14 08:45:41,334 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:45:41,334 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 08:45:41,373 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:45:41,377 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;@3ae99d26, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:45:41,378 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 08:45:41,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 242 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:45:41,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 08:45:41,386 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:41,387 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:41,387 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:45:41,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:41,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1364258301, now seen corresponding path program 1 times [2022-12-14 08:45:41,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:45:41,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [362896138] [2022-12-14 08:45:41,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:41,405 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 [2022-12-14 08:45:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:45:41,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:45:41,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:45:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:42,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 08:45:42,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:45:42,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:45:42,723 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:45:42,723 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:45:42,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [362896138] [2022-12-14 08:45:42,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [362896138] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:42,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:42,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:45:42,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719140609] [2022-12-14 08:45:42,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:42,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 08:45:42,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:45:42,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 08:45:42,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:45:42,759 INFO L87 Difference]: Start difference. First operand has 242 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:45:42,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:42,813 INFO L93 Difference]: Finished difference Result 482 states and 803 transitions. [2022-12-14 08:45:42,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 08:45:42,815 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-12-14 08:45:42,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:42,825 INFO L225 Difference]: With dead ends: 482 [2022-12-14 08:45:42,825 INFO L226 Difference]: Without dead ends: 239 [2022-12-14 08:45:42,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 08:45:42,835 INFO L413 NwaCegarLoop]: 331 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, 331 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 [2022-12-14 08:45:42,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:45:42,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-12-14 08:45:42,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-12-14 08:45:42,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 223 states have (on average 1.3721973094170403) internal successors, (306), 223 states have internal predecessors, (306), 11 states have call successors, (11), 4 states have call predecessors, (11), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2022-12-14 08:45:42,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 328 transitions. [2022-12-14 08:45:42,888 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 328 transitions. Word has length 10 [2022-12-14 08:45:42,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:42,889 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 328 transitions. [2022-12-14 08:45:42,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:45:42,889 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 328 transitions. [2022-12-14 08:45:42,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:45:42,890 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:42,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:42,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:45:43,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:45:43,092 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:45:43,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:43,094 INFO L85 PathProgramCache]: Analyzing trace with hash 681671652, now seen corresponding path program 1 times [2022-12-14 08:45:43,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:45:43,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357235861] [2022-12-14 08:45:43,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:43,098 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 [2022-12-14 08:45:43,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:45:43,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:45:43,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:45:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:44,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-14 08:45:44,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:45:44,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:45:44,818 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:45:44,818 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:45:44,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357235861] [2022-12-14 08:45:44,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357235861] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:45:44,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:45:44,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 08:45:44,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317610216] [2022-12-14 08:45:44,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:45:44,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 08:45:44,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:45:44,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 08:45:44,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 08:45:44,831 INFO L87 Difference]: Start difference. First operand 239 states and 328 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:45:47,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-14 08:45:47,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:45:47,182 INFO L93 Difference]: Finished difference Result 283 states and 378 transitions. [2022-12-14 08:45:47,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 08:45:47,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-14 08:45:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:45:47,184 INFO L225 Difference]: With dead ends: 283 [2022-12-14 08:45:47,184 INFO L226 Difference]: Without dead ends: 52 [2022-12-14 08:45:47,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 08:45:47,186 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 25 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-12-14 08:45:47,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 193 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 1 Unknown, 0 Unchecked, 2.1s Time] [2022-12-14 08:45:47,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-12-14 08:45:47,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-12-14 08:45:47,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 47 states have internal predecessors, (55), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 08:45:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-12-14 08:45:47,192 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 11 [2022-12-14 08:45:47,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:45:47,193 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-12-14 08:45:47,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 08:45:47,193 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-12-14 08:45:47,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 08:45:47,194 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:45:47,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:45:47,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-14 08:45:47,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:45:47,396 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:45:47,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:45:47,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1601329095, now seen corresponding path program 1 times [2022-12-14 08:45:47,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:45:47,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [544625047] [2022-12-14 08:45:47,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:45:47,403 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 [2022-12-14 08:45:47,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:45:47,407 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:45:47,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:45:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:45:49,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 08:45:49,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:45:55,708 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___kernel_tanf_#in~iy| (_ bv1 32)))) (or (and (not .cse0) (= (fp.div c_currentRoundingMode (fp.neg c_~one_ktan~0) |c___kernel_tanf_#in~x|) |c___kernel_tanf_#res|)) (and (= |c___kernel_tanf_#in~x| |c___kernel_tanf_#res|) .cse0))) is different from false [2022-12-14 08:46:02,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:46:02,425 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:46:02,425 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:46:02,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [544625047] [2022-12-14 08:46:02,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [544625047] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:46:02,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:46:02,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 08:46:02,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708372882] [2022-12-14 08:46:02,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:46:02,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 08:46:02,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:46:02,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 08:46:02,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=32, Unknown=1, NotChecked=10, Total=56 [2022-12-14 08:46:02,427 INFO L87 Difference]: Start difference. First operand 52 states and 59 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 08:46:05,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.70s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:07,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:09,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:10,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:12,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:14,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:41,110 WARN L233 SmtUtils]: Spent 15.80s on a formula simplification that was a NOOP. DAG size: 20 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-14 08:46:44,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:46,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:49,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-14 08:46:49,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:46:49,649 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2022-12-14 08:46:49,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 08:46:49,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-12-14 08:46:49,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:46:49,652 INFO L225 Difference]: With dead ends: 71 [2022-12-14 08:46:49,652 INFO L226 Difference]: Without dead ends: 68 [2022-12-14 08:46:49,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 31.3s TimeCoverageRelationStatistics Valid=35, Invalid=98, Unknown=3, NotChecked=20, Total=156 [2022-12-14 08:46:49,653 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 42 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 46 IncrementalHoareTripleChecker+Unchecked, 20.2s IncrementalHoareTripleChecker+Time [2022-12-14 08:46:49,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 263 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 5 Unknown, 46 Unchecked, 20.2s Time] [2022-12-14 08:46:49,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-12-14 08:46:49,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2022-12-14 08:46:49,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 51 states have (on average 1.1568627450980393) internal successors, (59), 51 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-14 08:46:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2022-12-14 08:46:49,658 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 21 [2022-12-14 08:46:49,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:46:49,659 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2022-12-14 08:46:49,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 08:46:49,659 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2022-12-14 08:46:49,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 08:46:49,660 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:46:49,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:46:49,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-14 08:46:49,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:46:49,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 08:46:49,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:46:49,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1278284418, now seen corresponding path program 1 times [2022-12-14 08:46:49,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:46:49,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277024649] [2022-12-14 08:46:49,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:46:49,866 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 [2022-12-14 08:46:49,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:46:49,869 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:46:49,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:46:51,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:46:51,048 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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$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 [2022-12-14 08:46:51,051 INFO L158 Benchmark]: Toolchain (without parser) took 107815.06ms. Allocated memory is still 73.4MB. Free memory was 51.1MB in the beginning and 36.9MB in the end (delta: 14.2MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2022-12-14 08:46:51,051 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 58.7MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:46:51,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.24ms. Allocated memory is still 73.4MB. Free memory was 50.9MB in the beginning and 37.9MB in the end (delta: 13.0MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-12-14 08:46:51,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.18ms. Allocated memory is still 73.4MB. Free memory was 37.9MB in the beginning and 49.9MB in the end (delta: -12.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-12-14 08:46:51,052 INFO L158 Benchmark]: Boogie Preprocessor took 92.91ms. Allocated memory is still 73.4MB. Free memory was 49.9MB in the beginning and 42.2MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 08:46:51,053 INFO L158 Benchmark]: RCFGBuilder took 37487.96ms. Allocated memory is still 73.4MB. Free memory was 41.9MB in the beginning and 27.8MB in the end (delta: 14.1MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-12-14 08:46:51,053 INFO L158 Benchmark]: TraceAbstraction took 69737.17ms. Allocated memory is still 73.4MB. Free memory was 26.9MB in the beginning and 36.9MB in the end (delta: -9.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-12-14 08:46:51,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 58.7MB. Free memory is still 37.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.24ms. Allocated memory is still 73.4MB. Free memory was 50.9MB in the beginning and 37.9MB in the end (delta: 13.0MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.18ms. Allocated memory is still 73.4MB. Free memory was 37.9MB in the beginning and 49.9MB in the end (delta: -12.0MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 92.91ms. Allocated memory is still 73.4MB. Free memory was 49.9MB in the beginning and 42.2MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 37487.96ms. Allocated memory is still 73.4MB. Free memory was 41.9MB in the beginning and 27.8MB in the end (delta: 14.1MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 69737.17ms. Allocated memory is still 73.4MB. Free memory was 26.9MB in the beginning and 36.9MB in the end (delta: -9.9MB). Peak memory consumption was 8.8MB. 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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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. [2022-12-14 08:46:51,260 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-12-14 08:46:51,275 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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 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_252a7dd0-f6cd-4069-96c7-1f995dc1641c/bin/utaipan-gh47qXpMRh/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.