./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/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_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba --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-b5237d8 [2022-11-22 01:10:50,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:10:50,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:10:50,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:10:50,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:10:50,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:10:50,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:10:50,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:10:50,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:10:50,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:10:50,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:10:50,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:10:50,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:10:50,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:10:50,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:10:50,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:10:50,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:10:50,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:10:50,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:10:50,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:10:50,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:10:50,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:10:50,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:10:50,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:10:50,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:10:50,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:10:50,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:10:50,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:10:50,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:10:50,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:10:50,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:10:50,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:10:50,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:10:50,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:10:50,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:10:50,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:10:50,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:10:50,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:10:50,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:10:50,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:10:50,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:10:50,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:10:50,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:10:50,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:10:50,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:10:50,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:10:50,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:10:50,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:10:50,381 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:10:50,381 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:10:50,381 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:10:50,382 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:10:50,382 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:10:50,382 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:10:50,382 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:10:50,382 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:10:50,382 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:10:50,383 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:10:50,383 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:10:50,383 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:10:50,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:10:50,384 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:10:50,384 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:10:50,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:10:50,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:10:50,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:10:50,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:10:50,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:10:50,385 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:10:50,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:10:50,386 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:10:50,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:10:50,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:10:50,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:10:50,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:10:50,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:10:50,387 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:10:50,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:10:50,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:10:50,387 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:10:50,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:10:50,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:10:50,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:10:50,388 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_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 [2022-11-22 01:10:50,714 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:10:50,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:10:50,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:10:50,741 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:10:50,742 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:10:50,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2022-11-22 01:10:53,753 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:10:54,060 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:10:54,060 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2022-11-22 01:10:54,070 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/data/fff11110f/cbe24b571965447d9f64538d91f26e35/FLAGc7d2fec8d [2022-11-22 01:10:54,086 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/data/fff11110f/cbe24b571965447d9f64538d91f26e35 [2022-11-22 01:10:54,093 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:10:54,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:10:54,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:10:54,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:10:54,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:10:54,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:54,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@312926d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54, skipping insertion in model container [2022-11-22 01:10:54,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:54,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:10:54,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:10:54,629 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_5b173b05-b5a1-4390-a7ab-bdd6719db959/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2022-11-22 01:10:54,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:10:54,679 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:10:54,772 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_5b173b05-b5a1-4390-a7ab-bdd6719db959/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2022-11-22 01:10:54,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:10:54,813 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:10:54,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54 WrapperNode [2022-11-22 01:10:54,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:10:54,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:10:54,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:10:54,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:10:54,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:54,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:54,918 INFO L138 Inliner]: procedures = 25, calls = 519, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 1054 [2022-11-22 01:10:54,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:10:54,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:10:54,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:10:54,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:10:54,928 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:54,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:54,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:54,941 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:54,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:54,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:55,000 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:55,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:55,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:10:55,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:10:55,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:10:55,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:10:55,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (1/1) ... [2022-11-22 01:10:55,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:10:55,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:55,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:10:55,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:10:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:10:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:10:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-22 01:10:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:10:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-11-22 01:10:55,140 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-11-22 01:10:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-22 01:10:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2022-11-22 01:10:55,140 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2022-11-22 01:10:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:10:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-22 01:10:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-11-22 01:10:55,141 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-11-22 01:10:55,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:10:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2022-11-22 01:10:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2022-11-22 01:10:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:10:55,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:10:55,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:10:55,430 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:10:55,431 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:10:56,639 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:10:56,949 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:10:56,949 INFO L300 CfgBuilder]: Removed 65 assume(true) statements. [2022-11-22 01:10:56,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:56 BoogieIcfgContainer [2022-11-22 01:10:56,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:10:56,955 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:10:56,955 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:10:56,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:10:56,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:10:54" (1/3) ... [2022-11-22 01:10:56,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe1d68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:10:56, skipping insertion in model container [2022-11-22 01:10:56,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:10:54" (2/3) ... [2022-11-22 01:10:56,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe1d68c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:10:56, skipping insertion in model container [2022-11-22 01:10:56,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:56" (3/3) ... [2022-11-22 01:10:56,961 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2022-11-22 01:10:56,980 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:10:56,980 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:10:57,032 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:10:57,039 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;@74e2e27a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:10:57,039 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:10:57,044 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) [2022-11-22 01:10:57,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:10:57,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:57,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:57,052 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:57,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:57,057 INFO L85 PathProgramCache]: Analyzing trace with hash -643166026, now seen corresponding path program 1 times [2022-11-22 01:10:57,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:57,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682012585] [2022-11-22 01:10:57,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:57,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:10:57,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:57,466 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:10:57,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682012585] [2022-11-22 01:10:57,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682012585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:10:57,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:10:57,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:10:57,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315533212] [2022-11-22 01:10:57,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:10:57,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:10:57,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:10:57,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:10:57,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:10:57,520 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) [2022-11-22 01:10:57,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:57,778 INFO L93 Difference]: Finished difference Result 333 states and 562 transitions. [2022-11-22 01:10:57,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:10:57,781 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 01:10:57,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:57,794 INFO L225 Difference]: With dead ends: 333 [2022-11-22 01:10:57,794 INFO L226 Difference]: Without dead ends: 165 [2022-11-22 01:10:57,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:10:57,809 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:57,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 176 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:10:57,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2022-11-22 01:10:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2022-11-22 01:10:57,858 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) [2022-11-22 01:10:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 226 transitions. [2022-11-22 01:10:57,862 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 226 transitions. Word has length 9 [2022-11-22 01:10:57,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:57,862 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 226 transitions. [2022-11-22 01:10:57,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:10:57,863 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 226 transitions. [2022-11-22 01:10:57,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:10:57,864 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:10:57,864 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:10:57,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:10:57,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:10:57,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:10:57,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1418940341, now seen corresponding path program 1 times [2022-11-22 01:10:57,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:10:57,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285406759] [2022-11-22 01:10:57,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:10:57,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:10:57,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:10:57,973 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:10:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:10:58,095 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:10:58,095 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:10:58,097 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:10:58,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:10:58,102 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 01:10:58,107 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:10:58,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:10:58 BoogieIcfgContainer [2022-11-22 01:10:58,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:10:58,178 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:10:58,178 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:10:58,181 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:10:58,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:10:56" (3/4) ... [2022-11-22 01:10:58,184 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:10:58,184 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:10:58,185 INFO L158 Benchmark]: Toolchain (without parser) took 4089.55ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 88.0MB in the beginning and 110.0MB in the end (delta: -22.0MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2022-11-22 01:10:58,185 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:10:58,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 717.30ms. Allocated memory is still 125.8MB. Free memory was 88.0MB in the beginning and 79.7MB in the end (delta: 8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:10:58,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.68ms. Allocated memory is still 125.8MB. Free memory was 79.7MB in the beginning and 72.8MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 01:10:58,187 INFO L158 Benchmark]: Boogie Preprocessor took 94.80ms. Allocated memory is still 125.8MB. Free memory was 72.5MB in the beginning and 65.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 01:10:58,187 INFO L158 Benchmark]: RCFGBuilder took 1937.96ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 65.2MB in the beginning and 106.6MB in the end (delta: -41.3MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2022-11-22 01:10:58,188 INFO L158 Benchmark]: TraceAbstraction took 1222.02ms. Allocated memory is still 165.7MB. Free memory was 106.6MB in the beginning and 110.0MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:10:58,188 INFO L158 Benchmark]: Witness Printer took 6.53ms. Allocated memory is still 165.7MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:10:58,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 125.8MB. Free memory is still 97.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 717.30ms. Allocated memory is still 125.8MB. Free memory was 88.0MB in the beginning and 79.7MB in the end (delta: 8.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.68ms. Allocated memory is still 125.8MB. Free memory was 79.7MB in the beginning and 72.8MB in the end (delta: 6.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.80ms. Allocated memory is still 125.8MB. Free memory was 72.5MB in the beginning and 65.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1937.96ms. Allocated memory was 125.8MB in the beginning and 165.7MB in the end (delta: 39.8MB). Free memory was 65.2MB in the beginning and 106.6MB in the end (delta: -41.3MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1222.02ms. Allocated memory is still 165.7MB. Free memory was 106.6MB in the beginning and 110.0MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.53ms. Allocated memory is still 165.7MB. Free memory is still 110.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.2s 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, 0.2s SatisfiabilityAnalysisTime, 0.2s 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 [2022-11-22 01:10:58,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/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_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba --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-b5237d8 [2022-11-22 01:11:00,537 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:11:00,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:11:00,560 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:11:00,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:11:00,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:11:00,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:11:00,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:11:00,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:11:00,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:11:00,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:11:00,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:11:00,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:11:00,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:11:00,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:11:00,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:11:00,575 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:11:00,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:11:00,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:11:00,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:11:00,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:11:00,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:11:00,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:11:00,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:11:00,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:11:00,590 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:11:00,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:11:00,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:11:00,592 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:11:00,593 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:11:00,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:11:00,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:11:00,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:11:00,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:11:00,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:11:00,618 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:11:00,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:11:00,619 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:11:00,619 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:11:00,620 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:11:00,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:11:00,622 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 01:11:00,657 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:11:00,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:11:00,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:11:00,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:11:00,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:11:00,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:11:00,661 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:11:00,661 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:11:00,662 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:11:00,662 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:11:00,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:11:00,663 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:11:00,664 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:11:00,665 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:11:00,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:11:00,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:11:00,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:11:00,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:11:00,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:11:00,666 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:11:00,667 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:11:00,667 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:11:00,667 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:11:00,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:11:00,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:11:00,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:11:00,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:11:00,669 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:11:00,669 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:11:00,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:11:00,669 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:11:00,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:11:00,670 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:11:00,670 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:11:00,671 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:11:00,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:11:00,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:11:00,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:11:00,672 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_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6915ca7c38b22dabdfa0a60568fe3819ee729e5435cec7a2a93391b1f034f0d0 [2022-11-22 01:11:01,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:11:01,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:11:01,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:11:01,057 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:11:01,058 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:11:01,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2022-11-22 01:11:04,264 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:11:04,545 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:11:04,545 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c [2022-11-22 01:11:04,559 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/data/d68250845/29994ee7b914477a94aa868dd546eb94/FLAGc1502487b [2022-11-22 01:11:04,578 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/data/d68250845/29994ee7b914477a94aa868dd546eb94 [2022-11-22 01:11:04,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:11:04,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:11:04,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:11:04,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:11:04,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:11:04,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:11:04" (1/1) ... [2022-11-22 01:11:04,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1007c37b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:04, skipping insertion in model container [2022-11-22 01:11:04,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:11:04" (1/1) ... [2022-11-22 01:11:04,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:11:04,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:11:04,990 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_5b173b05-b5a1-4390-a7ab-bdd6719db959/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2022-11-22 01:11:04,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:11:05,051 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:11:05,166 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_5b173b05-b5a1-4390-a7ab-bdd6719db959/sv-benchmarks/c/float-newlib/float_req_bl_0530b.c[15592,15605] [2022-11-22 01:11:05,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:11:05,214 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:11:05,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05 WrapperNode [2022-11-22 01:11:05,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:11:05,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:11:05,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:11:05,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:11:05,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,367 INFO L138 Inliner]: procedures = 29, calls = 519, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 1052 [2022-11-22 01:11:05,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:11:05,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:11:05,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:11:05,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:11:05,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,390 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,453 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:11:05,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:11:05,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:11:05,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:11:05,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (1/1) ... [2022-11-22 01:11:05,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:11:05,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:11:05,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:11:05,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:11:05,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:11:05,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:11:05,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-22 01:11:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:11:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-22 01:11:05,569 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2022-11-22 01:11:05,569 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2022-11-22 01:11:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:11:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2022-11-22 01:11:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2022-11-22 01:11:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-22 01:11:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2022-11-22 01:11:05,570 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2022-11-22 01:11:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-22 01:11:05,570 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2022-11-22 01:11:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2022-11-22 01:11:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:11:05,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:11:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:11:05,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:11:05,792 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:11:05,794 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:11:45,907 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:11:45,924 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:11:45,925 INFO L300 CfgBuilder]: Removed 65 assume(true) statements. [2022-11-22 01:11:45,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:11:45 BoogieIcfgContainer [2022-11-22 01:11:45,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:11:45,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:11:45,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:11:45,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:11:45,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:11:04" (1/3) ... [2022-11-22 01:11:45,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51660bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:11:45, skipping insertion in model container [2022-11-22 01:11:45,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:11:05" (2/3) ... [2022-11-22 01:11:45,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51660bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:11:45, skipping insertion in model container [2022-11-22 01:11:45,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:11:45" (3/3) ... [2022-11-22 01:11:45,939 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0530b.c [2022-11-22 01:11:45,955 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:11:45,956 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:11:46,009 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:11:46,015 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;@28319ddb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:11:46,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:11:46,020 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) [2022-11-22 01:11:46,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:11:46,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:46,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:46,027 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:46,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:46,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1364258301, now seen corresponding path program 1 times [2022-11-22 01:11:46,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:11:46,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968056199] [2022-11-22 01:11:46,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:46,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:11:46,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:11:46,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:11:46,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 01:11:47,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:47,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 01:11:47,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:47,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:47,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:11:47,640 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:11:47,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968056199] [2022-11-22 01:11:47,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968056199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:47,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:47,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:11:47,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899714551] [2022-11-22 01:11:47,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:47,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:11:47,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:11:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:11:47,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:11:47,697 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) [2022-11-22 01:11:47,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:47,764 INFO L93 Difference]: Finished difference Result 482 states and 803 transitions. [2022-11-22 01:11:47,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:11:47,766 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 01:11:47,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:47,776 INFO L225 Difference]: With dead ends: 482 [2022-11-22 01:11:47,776 INFO L226 Difference]: Without dead ends: 239 [2022-11-22 01:11:47,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:11:47,785 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 [2022-11-22 01:11:47,786 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] [2022-11-22 01:11:47,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2022-11-22 01:11:47,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2022-11-22 01:11:47,837 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) [2022-11-22 01:11:47,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 328 transitions. [2022-11-22 01:11:47,843 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 328 transitions. Word has length 10 [2022-11-22 01:11:47,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:47,843 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 328 transitions. [2022-11-22 01:11:47,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:11:47,844 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 328 transitions. [2022-11-22 01:11:47,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:11:47,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:47,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:11:47,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:48,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:11:48,062 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:48,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:48,063 INFO L85 PathProgramCache]: Analyzing trace with hash 681671652, now seen corresponding path program 1 times [2022-11-22 01:11:48,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:11:48,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1445740453] [2022-11-22 01:11:48,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:48,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:11:48,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:11:48,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:11:48,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 01:11:49,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:49,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 01:11:49,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:11:50,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:11:50,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:11:50,196 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:11:50,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1445740453] [2022-11-22 01:11:50,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1445740453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:11:50,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:11:50,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 01:11:50,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782424123] [2022-11-22 01:11:50,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:11:50,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:11:50,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:11:50,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:11:50,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:11:50,200 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) [2022-11-22 01:11:50,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:11:50,584 INFO L93 Difference]: Finished difference Result 283 states and 378 transitions. [2022-11-22 01:11:50,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:11:50,589 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 [2022-11-22 01:11:50,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:11:50,590 INFO L225 Difference]: With dead ends: 283 [2022-11-22 01:11:50,590 INFO L226 Difference]: Without dead ends: 52 [2022-11-22 01:11:50,592 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 [2022-11-22 01:11:50,593 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 25 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:11:50,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 193 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:11:50,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-22 01:11:50,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-22 01:11:50,605 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) [2022-11-22 01:11:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 59 transitions. [2022-11-22 01:11:50,606 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 59 transitions. Word has length 11 [2022-11-22 01:11:50,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:11:50,607 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 59 transitions. [2022-11-22 01:11:50,607 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) [2022-11-22 01:11:50,607 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 59 transitions. [2022-11-22 01:11:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-22 01:11:50,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:11:50,608 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] [2022-11-22 01:11:50,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:11:50,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:11:50,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:11:50,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:11:50,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1601329095, now seen corresponding path program 1 times [2022-11-22 01:11:50,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:11:50,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1650675835] [2022-11-22 01:11:50,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:11:50,845 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:11:50,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:11:50,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:11:50,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-22 01:11:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:11:52,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-22 01:11:52,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:12:02,288 WARN L859 $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 true [2022-11-22 01:12:07,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:12:07,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:12:07,537 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:12:07,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1650675835] [2022-11-22 01:12:07,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1650675835] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:12:07,537 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:12:07,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-22 01:12:07,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043565219] [2022-11-22 01:12:07,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:12:07,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-22 01:12:07,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:12:07,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-22 01:12:07,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=32, Unknown=1, NotChecked=10, Total=56 [2022-11-22 01:12:07,540 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) [2022-11-22 01:12:10,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:13,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:14,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:17,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:20,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:12:20,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:12:20,270 INFO L93 Difference]: Finished difference Result 71 states and 77 transitions. [2022-11-22 01:12:20,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:12:20,271 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 [2022-11-22 01:12:20,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:12:20,273 INFO L225 Difference]: With dead ends: 71 [2022-11-22 01:12:20,273 INFO L226 Difference]: Without dead ends: 68 [2022-11-22 01:12:20,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=17, Invalid=42, Unknown=1, NotChecked=12, Total=72 [2022-11-22 01:12:20,275 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 23 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 66 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-22 01:12:20,275 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 259 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 3 Unknown, 66 Unchecked, 12.6s Time] [2022-11-22 01:12:20,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-22 01:12:20,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 57. [2022-11-22 01:12:20,283 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) [2022-11-22 01:12:20,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2022-11-22 01:12:20,284 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 21 [2022-11-22 01:12:20,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:12:20,285 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2022-11-22 01:12:20,285 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) [2022-11-22 01:12:20,285 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2022-11-22 01:12:20,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:12:20,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:12:20,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:12:20,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:12:20,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:12:20,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:12:20,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:12:20,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1278284418, now seen corresponding path program 1 times [2022-11-22 01:12:20,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:12:20,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1658017281] [2022-11-22 01:12:20,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:12:20,496 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:12:20,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:12:20,497 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:12:20,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-22 01:12:21,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:12:21,854 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_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/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:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-22 01:12:21,867 INFO L158 Benchmark]: Toolchain (without parser) took 77283.27ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 45.8MB in the beginning and 62.1MB in the end (delta: -16.2MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2022-11-22 01:12:21,867 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:12:21,867 INFO L158 Benchmark]: CACSL2BoogieTranslator took 628.55ms. Allocated memory is still 88.1MB. Free memory was 45.5MB in the beginning and 42.8MB in the end (delta: 2.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-11-22 01:12:21,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.10ms. Allocated memory is still 88.1MB. Free memory was 42.8MB in the beginning and 61.8MB in the end (delta: -19.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-22 01:12:21,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 139 [2022-11-22 01:12:21,873 INFO L158 Benchmark]: Boogie Preprocessor took 98.42ms. Allocated memory is still 88.1MB. Free memory was 61.8MB in the beginning and 54.0MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 01:12:21,873 INFO L158 Benchmark]: RCFGBuilder took 40460.99ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 54.0MB in the beginning and 77.6MB in the end (delta: -23.6MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-11-22 01:12:21,874 INFO L158 Benchmark]: TraceAbstraction took 35933.54ms. Allocated memory is still 113.2MB. Free memory was 77.0MB in the beginning and 62.1MB in the end (delta: 14.9MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-11-22 01:12:21,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 88.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 628.55ms. Allocated memory is still 88.1MB. Free memory was 45.5MB in the beginning and 42.8MB in the end (delta: 2.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 148.10ms. Allocated memory is still 88.1MB. Free memory was 42.8MB in the beginning and 61.8MB in the end (delta: -19.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.42ms. Allocated memory is still 88.1MB. Free memory was 61.8MB in the beginning and 54.0MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 40460.99ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 54.0MB in the beginning and 77.6MB in the end (delta: -23.6MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35933.54ms. Allocated memory is still 113.2MB. Free memory was 77.0MB in the beginning and 62.1MB in the end (delta: 14.9MB). Peak memory consumption was 16.0MB. 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_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/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_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-22 01:12:22,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/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_5b173b05-b5a1-4390-a7ab-bdd6719db959/bin/utaipan-g80aRyZoba/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.