./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:25:45,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:25:45,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:25:45,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:25:45,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:25:45,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:25:45,307 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:25:45,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:25:45,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:25:45,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:25:45,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:25:45,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:25:45,315 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:25:45,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:25:45,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:25:45,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:25:45,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:25:45,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:25:45,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:25:45,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:25:45,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:25:45,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:25:45,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:25:45,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:25:45,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:25:45,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:25:45,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:25:45,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:25:45,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:25:45,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:25:45,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:25:45,353 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:25:45,354 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:25:45,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:25:45,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:25:45,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:25:45,359 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:25:45,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:25:45,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:25:45,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:25:45,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:25:45,366 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 23:25:45,406 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:25:45,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:25:45,407 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:25:45,408 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:25:45,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:25:45,409 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:25:45,409 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:25:45,409 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:25:45,410 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:25:45,410 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:25:45,411 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:25:45,411 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:25:45,412 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:25:45,412 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:25:45,412 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:25:45,412 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:25:45,413 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:25:45,413 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:25:45,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:25:45,414 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:25:45,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:25:45,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:25:45,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:25:45,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:25:45,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:25:45,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:25:45,415 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:25:45,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:25:45,416 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:25:45,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:25:45,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:25:45,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:25:45,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:25:45,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:25:45,417 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:25:45,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:25:45,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:25:45,418 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:25:45,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:25:45,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:25:45,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:25:45,419 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_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c [2022-11-25 23:25:45,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:25:45,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:25:45,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:25:45,734 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:25:45,735 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:25:45,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2022-11-25 23:25:48,879 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:25:49,136 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:25:49,137 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2022-11-25 23:25:49,154 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/data/248f80197/469454336b6b4f87ba566e582edb188b/FLAGcfe5900c0 [2022-11-25 23:25:49,178 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/data/248f80197/469454336b6b4f87ba566e582edb188b [2022-11-25 23:25:49,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:25:49,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:25:49,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:25:49,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:25:49,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:25:49,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea50810 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49, skipping insertion in model container [2022-11-25 23:25:49,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:25:49,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:25:49,562 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_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2022-11-25 23:25:49,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:25:49,594 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:25:49,655 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_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2022-11-25 23:25:49,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:25:49,674 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:25:49,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49 WrapperNode [2022-11-25 23:25:49,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:25:49,677 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:25:49,677 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:25:49,677 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:25:49,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,746 INFO L138 Inliner]: procedures = 16, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 145 [2022-11-25 23:25:49,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:25:49,747 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:25:49,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:25:49,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:25:49,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,808 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:25:49,809 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:25:49,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:25:49,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:25:49,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (1/1) ... [2022-11-25 23:25:49,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:25:49,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:25:49,865 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:25:49,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:25:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:25:49,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:25:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:25:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-11-25 23:25:49,916 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-11-25 23:25:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-25 23:25:49,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:25:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-25 23:25:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:25:49,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:25:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:25:49,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:25:50,018 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:25:50,021 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:25:50,481 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:25:50,515 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:25:50,516 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-25 23:25:50,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:25:50 BoogieIcfgContainer [2022-11-25 23:25:50,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:25:50,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:25:50,523 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:25:50,526 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:25:50,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:25:49" (1/3) ... [2022-11-25 23:25:50,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a83b893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:25:50, skipping insertion in model container [2022-11-25 23:25:50,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:49" (2/3) ... [2022-11-25 23:25:50,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a83b893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:25:50, skipping insertion in model container [2022-11-25 23:25:50,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:25:50" (3/3) ... [2022-11-25 23:25:50,530 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2022-11-25 23:25:50,553 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:25:50,554 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:25:50,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:25:50,626 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;@4a5f1f56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:25:50,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:25:50,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 32 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:25:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 23:25:50,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:50,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:50,645 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:25:50,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:50,652 INFO L85 PathProgramCache]: Analyzing trace with hash 980551628, now seen corresponding path program 1 times [2022-11-25 23:25:50,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:50,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970002459] [2022-11-25 23:25:50,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:50,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:50,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:50,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:50,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970002459] [2022-11-25 23:25:50,909 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970002459] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:50,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:50,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:25:50,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542773837] [2022-11-25 23:25:50,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:50,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:25:50,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:50,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:25:50,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:25:50,967 INFO L87 Difference]: Start difference. First operand has 36 states, 31 states have (on average 1.6451612903225807) internal successors, (51), 32 states have internal predecessors, (51), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-25 23:25:51,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:51,030 INFO L93 Difference]: Finished difference Result 71 states and 109 transitions. [2022-11-25 23:25:51,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:25:51,033 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 15 [2022-11-25 23:25:51,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:51,042 INFO L225 Difference]: With dead ends: 71 [2022-11-25 23:25:51,043 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 23:25:51,047 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 [2022-11-25 23:25:51,054 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:51,055 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:25:51,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 23:25:51,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-25 23:25:51,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.1333333333333333) internal successors, (34), 30 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:25:51,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-11-25 23:25:51,107 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 15 [2022-11-25 23:25:51,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:51,108 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-11-25 23:25:51,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-25 23:25:51,111 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-11-25 23:25:51,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 23:25:51,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:51,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:51,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:25:51,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:25:51,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:51,117 INFO L85 PathProgramCache]: Analyzing trace with hash -868093747, now seen corresponding path program 1 times [2022-11-25 23:25:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:51,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411218977] [2022-11-25 23:25:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:51,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:25:51,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:51,326 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:25:51,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411218977] [2022-11-25 23:25:51,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411218977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:25:51,327 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:25:51,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:25:51,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004856136] [2022-11-25 23:25:51,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:25:51,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:25:51,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:25:51,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:25:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:25:51,333 INFO L87 Difference]: Start difference. First operand 34 states and 38 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-25 23:25:51,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:25:51,372 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2022-11-25 23:25:51,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:25:51,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 17 [2022-11-25 23:25:51,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:25:51,375 INFO L225 Difference]: With dead ends: 37 [2022-11-25 23:25:51,377 INFO L226 Difference]: Without dead ends: 34 [2022-11-25 23:25:51,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:25:51,380 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:25:51,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:25:51,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-25 23:25:51,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-11-25 23:25:51,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.1) internal successors, (33), 30 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:25:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2022-11-25 23:25:51,396 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 17 [2022-11-25 23:25:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:25:51,403 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2022-11-25 23:25:51,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-25 23:25:51,403 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2022-11-25 23:25:51,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 23:25:51,405 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:25:51,406 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:25:51,406 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:25:51,407 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:25:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:25:51,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1131488603, now seen corresponding path program 1 times [2022-11-25 23:25:51,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:25:51,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363937132] [2022-11-25 23:25:51,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:25:51,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:25:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:25:51,483 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:25:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:25:51,560 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:25:51,561 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:25:51,562 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 23:25:51,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:25:51,568 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:25:51,573 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:25:51,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:25:51 BoogieIcfgContainer [2022-11-25 23:25:51,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:25:51,647 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:25:51,647 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:25:51,647 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:25:51,648 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:25:50" (3/4) ... [2022-11-25 23:25:51,652 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:25:51,652 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:25:51,653 INFO L158 Benchmark]: Toolchain (without parser) took 2464.92ms. Allocated memory is still 163.6MB. Free memory was 123.8MB in the beginning and 61.1MB in the end (delta: 62.7MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2022-11-25 23:25:51,655 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 117.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:25:51,655 INFO L158 Benchmark]: CACSL2BoogieTranslator took 479.69ms. Allocated memory is still 163.6MB. Free memory was 123.4MB in the beginning and 125.6MB in the end (delta: -2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:25:51,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.88ms. Allocated memory is still 163.6MB. Free memory was 125.6MB in the beginning and 124.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:25:51,665 INFO L158 Benchmark]: Boogie Preprocessor took 60.73ms. Allocated memory is still 163.6MB. Free memory was 124.0MB in the beginning and 122.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:25:51,666 INFO L158 Benchmark]: RCFGBuilder took 710.47ms. Allocated memory is still 163.6MB. Free memory was 121.9MB in the beginning and 104.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 23:25:51,666 INFO L158 Benchmark]: TraceAbstraction took 1123.01ms. Allocated memory is still 163.6MB. Free memory was 104.0MB in the beginning and 61.6MB in the end (delta: 42.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-25 23:25:51,666 INFO L158 Benchmark]: Witness Printer took 5.56ms. Allocated memory is still 163.6MB. Free memory was 61.6MB in the beginning and 61.1MB in the end (delta: 499.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:25:51,669 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 117.4MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 479.69ms. Allocated memory is still 163.6MB. Free memory was 123.4MB in the beginning and 125.6MB in the end (delta: -2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.88ms. Allocated memory is still 163.6MB. Free memory was 125.6MB in the beginning and 124.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.73ms. Allocated memory is still 163.6MB. Free memory was 124.0MB in the beginning and 122.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 710.47ms. Allocated memory is still 163.6MB. Free memory was 121.9MB in the beginning and 104.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1123.01ms. Allocated memory is still 163.6MB. Free memory was 104.0MB in the beginning and 61.6MB in the end (delta: 42.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 5.56ms. Allocated memory is still 163.6MB. Free memory was 61.6MB in the beginning and 61.1MB in the end (delta: 499.4kB). 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: 88]: 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 75, overapproximation of someBinaryArithmeticFLOAToperation at line 82, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L13] static const float one_modf = 1.0; [L82] float x = 0.0f / 0.0f; [L83] float iptr; [L84] CALL, EXPR modf_float(x, &iptr) [L16] __int32_t i0, j0; [L17] __uint32_t i; VAL [\old(x)=4294967319, iptr={6:0}, iptr={6:0}, one_modf=1, x=4294967319] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=4294967319, i0=8, iptr={6:0}, iptr={6:0}, j0=-127, one_modf=1, x=4294967319] [L24] COND TRUE j0 < 23 VAL [\old(x)=4294967319, i0=8, iptr={6:0}, iptr={6:0}, j0=-127, one_modf=1, x=4294967319] [L25] COND TRUE j0 < 0 VAL [\old(x)=4294967319, i0=8, iptr={6:0}, iptr={6:0}, j0=-127, one_modf=1, x=4294967319] [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = (i0 & 0x80000000) [L29] EXPR sf_u.value [L29] (*iptr) = sf_u.value [L31] return x; VAL [\old(x)=4294967319, \result=4294967319, i0=8, iptr={6:0}, iptr={6:0}, j0=-127, one_modf=1, x=4294967319] [L84] RET, EXPR modf_float(x, &iptr) [L84] float res = modf_float(x, &iptr); [L87] EXPR \read(iptr) VAL [\read(iptr)=4294967318, iptr={6:0}, one_modf=1, res=4294967319, x=4294967319] [L87] CALL, EXPR isnan_float(iptr) VAL [\old(x)=4294967318, one_modf=1] [L75] return x != x; [L87] RET, EXPR isnan_float(iptr) VAL [\read(iptr)=4294967318, iptr={6:0}, isnan_float(iptr)=1, one_modf=1, res=4294967319, x=4294967319] [L87] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=4294967318, iptr={6:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, one_modf=1, res=4294967319, x=4294967319] [L87] CALL, EXPR isnan_float(res) VAL [\old(x)=4294967319, one_modf=1] [L75] return x != x; [L87] RET, EXPR isnan_float(res) VAL [\read(iptr)=4294967318, iptr={6:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1, res=4294967319, x=4294967319] [L87] isnan_float(iptr) && !isnan_float(res) VAL [\read(iptr)=4294967318, iptr={6:0}, isnan_float(iptr)=1, isnan_float(iptr) && !isnan_float(res)=1, isnan_float(res)=0, one_modf=1, res=4294967319, x=4294967319] [L87] COND TRUE isnan_float(iptr) && !isnan_float(res) [L88] reach_error() VAL [iptr={6:0}, one_modf=1, res=4294967319, x=4294967319] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 104 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 73 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:25:51,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:25:54,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:25:54,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:25:54,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:25:54,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:25:54,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:25:54,629 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:25:54,633 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:25:54,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:25:54,644 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:25:54,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:25:54,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:25:54,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:25:54,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:25:54,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:25:54,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:25:54,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:25:54,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:25:54,666 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:25:54,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:25:54,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:25:54,677 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:25:54,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:25:54,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:25:54,688 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:25:54,688 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:25:54,689 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:25:54,690 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:25:54,691 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:25:54,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:25:54,692 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:25:54,693 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:25:54,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:25:54,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:25:54,705 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:25:54,706 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:25:54,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:25:54,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:25:54,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:25:54,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:25:54,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:25:54,710 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-25 23:25:54,759 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:25:54,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:25:54,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:25:54,762 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:25:54,763 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:25:54,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:25:54,763 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:25:54,764 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:25:54,764 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:25:54,764 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:25:54,765 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:25:54,766 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:25:54,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:25:54,767 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:25:54,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:25:54,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:25:54,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:25:54,769 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:25:54,769 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:25:54,769 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:25:54,769 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:25:54,770 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:25:54,770 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:25:54,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:25:54,770 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:25:54,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:25:54,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:25:54,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:25:54,772 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:25:54,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:25:54,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:25:54,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:25:54,773 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:25:54,773 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:25:54,773 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:25:54,774 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:25:54,774 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:25:54,774 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:25:54,774 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_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72a09b82a82aabea0c4a084a3d99a9a83ff3f66f3965fc10414482ebb802703c [2022-11-25 23:25:55,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:25:55,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:25:55,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:25:55,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:25:55,277 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:25:55,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2022-11-25 23:25:58,718 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:25:58,964 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:25:58,965 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/sv-benchmarks/c/float-newlib/float_req_bl_1210.c [2022-11-25 23:25:58,973 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/data/79b1834b0/5f95c775c6ac46988831ddf0e7eb1561/FLAGcf516ff72 [2022-11-25 23:25:58,998 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/data/79b1834b0/5f95c775c6ac46988831ddf0e7eb1561 [2022-11-25 23:25:59,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:25:59,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:25:59,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:25:59,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:25:59,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:25:59,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:25:58" (1/1) ... [2022-11-25 23:25:59,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284c75d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59, skipping insertion in model container [2022-11-25 23:25:59,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:25:58" (1/1) ... [2022-11-25 23:25:59,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:25:59,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:25:59,230 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_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2022-11-25 23:25:59,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:25:59,275 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:25:59,318 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_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/sv-benchmarks/c/float-newlib/float_req_bl_1210.c[2159,2172] [2022-11-25 23:25:59,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:25:59,335 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:25:59,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59 WrapperNode [2022-11-25 23:25:59,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:25:59,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:25:59,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:25:59,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:25:59,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,381 INFO L138 Inliner]: procedures = 19, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 144 [2022-11-25 23:25:59,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:25:59,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:25:59,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:25:59,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:25:59,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,408 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,416 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:25:59,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:25:59,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:25:59,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:25:59,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (1/1) ... [2022-11-25 23:25:59,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:25:59,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:25:59,462 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:25:59,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:25:59,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:25:59,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:25:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:25:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-25 23:25:59,518 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2022-11-25 23:25:59,519 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2022-11-25 23:25:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 23:25:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:25:59,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:25:59,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-25 23:25:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 23:25:59,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:25:59,618 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:25:59,621 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:26:00,461 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:26:00,474 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:26:00,474 INFO L300 CfgBuilder]: Removed 14 assume(true) statements. [2022-11-25 23:26:00,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:26:00 BoogieIcfgContainer [2022-11-25 23:26:00,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:26:00,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:26:00,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:26:00,506 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:26:00,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:25:58" (1/3) ... [2022-11-25 23:26:00,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657077ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:26:00, skipping insertion in model container [2022-11-25 23:26:00,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:25:59" (2/3) ... [2022-11-25 23:26:00,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657077ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:26:00, skipping insertion in model container [2022-11-25 23:26:00,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:26:00" (3/3) ... [2022-11-25 23:26:00,513 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1210.c [2022-11-25 23:26:00,538 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:26:00,538 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:26:00,619 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:26:00,628 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;@1223396d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:26:00,629 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:26:00,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 34 states have (on average 1.588235294117647) internal successors, (54), 35 states have internal predecessors, (54), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:26:00,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 23:26:00,644 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:26:00,645 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:26:00,646 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:26:00,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:26:00,655 INFO L85 PathProgramCache]: Analyzing trace with hash -218345182, now seen corresponding path program 1 times [2022-11-25 23:26:00,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:26:00,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038890965] [2022-11-25 23:26:00,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:26:00,676 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:26:00,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:26:00,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:26:00,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 23:26:00,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:26:00,911 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_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) 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 [2022-11-25 23:26:00,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 139 [2022-11-25 23:26:00,923 INFO L158 Benchmark]: Toolchain (without parser) took 1918.32ms. Allocated memory is still 71.3MB. Free memory was 46.1MB in the beginning and 38.7MB in the end (delta: 7.4MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-25 23:26:00,923 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 54.5MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:26:00,924 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.90ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 49.9MB in the end (delta: -4.0MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-11-25 23:26:00,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.43ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 48.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:26:00,925 INFO L158 Benchmark]: Boogie Preprocessor took 39.37ms. Allocated memory is still 71.3MB. Free memory was 48.1MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:26:00,927 INFO L158 Benchmark]: RCFGBuilder took 1078.01ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 50.5MB in the end (delta: -4.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-11-25 23:26:00,929 INFO L158 Benchmark]: TraceAbstraction took 417.91ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 38.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 23:26:00,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 54.5MB. Free memory is still 32.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.90ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 49.9MB in the end (delta: -4.0MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.43ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 48.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.37ms. Allocated memory is still 71.3MB. Free memory was 48.1MB in the beginning and 46.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1078.01ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 50.5MB in the end (delta: -4.5MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 417.91ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 38.7MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) 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_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) 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. [2022-11-25 23:26:00,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_7b5b75be-c487-48a5-a9e7-7f8a39b0212e/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.