./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c1372ae8683a9b181ceb7919574ebc960da9cc935a490e3fb100e7f3b19512c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:19:59,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:19:59,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:19:59,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:19:59,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:19:59,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:19:59,196 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:19:59,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:19:59,200 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:19:59,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:19:59,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:19:59,203 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:19:59,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:19:59,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:19:59,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:19:59,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:19:59,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:19:59,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:19:59,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:19:59,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:19:59,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:19:59,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:19:59,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:19:59,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:19:59,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:19:59,221 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:19:59,221 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:19:59,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:19:59,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:19:59,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:19:59,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:19:59,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:19:59,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:19:59,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:19:59,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:19:59,228 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:19:59,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:19:59,229 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:19:59,229 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:19:59,230 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:19:59,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:19:59,231 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 11:19:59,253 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:19:59,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:19:59,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:19:59,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:19:59,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:19:59,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:19:59,255 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:19:59,255 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:19:59,256 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:19:59,256 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 11:19:59,256 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:19:59,256 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:19:59,256 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 11:19:59,256 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 11:19:59,257 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:19:59,257 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 11:19:59,257 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 11:19:59,257 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 11:19:59,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:19:59,258 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:19:59,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 11:19:59,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:19:59,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:19:59,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:19:59,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:19:59,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:19:59,259 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:19:59,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:19:59,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:19:59,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:19:59,260 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:19:59,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:19:59,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:19:59,261 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:19:59,261 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 11:19:59,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:19:59,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:19:59,261 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 11:19:59,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 11:19:59,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:19:59,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:19:59,262 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_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c1372ae8683a9b181ceb7919574ebc960da9cc935a490e3fb100e7f3b19512c [2022-12-14 11:19:59,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:19:59,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:19:59,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:19:59,465 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:19:59,465 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:19:59,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.i [2022-12-14 11:20:02,023 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:20:02,187 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:20:02,187 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i [2022-12-14 11:20:02,194 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/data/3274aedf9/8ec1d9b2b42f4e41bc0d1820efaa4e48/FLAG1ccdc8e6a [2022-12-14 11:20:02,595 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/data/3274aedf9/8ec1d9b2b42f4e41bc0d1820efaa4e48 [2022-12-14 11:20:02,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:20:02,599 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:20:02,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:20:02,600 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:20:02,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:20:02,603 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,604 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed2e44a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02, skipping insertion in model container [2022-12-14 11:20:02,604 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:20:02,626 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:20:02,749 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_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[1226,1239] [2022-12-14 11:20:02,771 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_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[2820,2833] [2022-12-14 11:20:02,773 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:20:02,782 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:20:02,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[1226,1239] [2022-12-14 11:20:02,803 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_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[2820,2833] [2022-12-14 11:20:02,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:20:02,814 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:20:02,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02 WrapperNode [2022-12-14 11:20:02,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:20:02,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:20:02,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:20:02,816 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:20:02,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,841 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2022-12-14 11:20:02,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:20:02,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:20:02,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:20:02,842 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:20:02,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,857 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:20:02,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:20:02,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:20:02,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:20:02,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (1/1) ... [2022-12-14 11:20:02,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:20:02,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:20:02,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:20:02,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:20:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:20:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 11:20:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:20:02,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:20:02,966 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:20:02,967 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:20:03,077 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:20:03,119 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:20:03,119 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:20:03,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:03 BoogieIcfgContainer [2022-12-14 11:20:03,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:20:03,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:20:03,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:20:03,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:20:03,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:20:02" (1/3) ... [2022-12-14 11:20:03,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd877b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:20:03, skipping insertion in model container [2022-12-14 11:20:03,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:02" (2/3) ... [2022-12-14 11:20:03,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd877b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:20:03, skipping insertion in model container [2022-12-14 11:20:03,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:03" (3/3) ... [2022-12-14 11:20:03,127 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_5.i [2022-12-14 11:20:03,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:20:03,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:20:03,181 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:20:03,192 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;@7c98d76f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:20:03,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:20:03,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:20:03,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 11:20:03,199 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:20:03,200 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 11:20:03,200 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:20:03,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:20:03,204 INFO L85 PathProgramCache]: Analyzing trace with hash 3514600, now seen corresponding path program 1 times [2022-12-14 11:20:03,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 11:20:03,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787273846] [2022-12-14 11:20:03,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:20:03,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 11:20:03,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:20:03,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:20:03,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:20:03,300 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 11:20:03,302 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:20:03,303 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 11:20:03,304 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 11:20:03,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 11:20:03,307 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 11:20:03,310 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:20:03,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:20:03 BoogieIcfgContainer [2022-12-14 11:20:03,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:20:03,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:20:03,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:20:03,323 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:20:03,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:03" (3/4) ... [2022-12-14 11:20:03,326 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 11:20:03,326 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:20:03,327 INFO L158 Benchmark]: Toolchain (without parser) took 727.90ms. Allocated memory is still 121.6MB. Free memory was 87.6MB in the beginning and 85.5MB in the end (delta: 2.1MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2022-12-14 11:20:03,327 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 100.7MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:20:03,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.73ms. Allocated memory is still 121.6MB. Free memory was 87.2MB in the beginning and 76.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 11:20:03,328 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.94ms. Allocated memory is still 121.6MB. Free memory was 76.1MB in the beginning and 74.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:20:03,328 INFO L158 Benchmark]: Boogie Preprocessor took 17.63ms. Allocated memory is still 121.6MB. Free memory was 74.3MB in the beginning and 73.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:20:03,329 INFO L158 Benchmark]: RCFGBuilder took 261.06ms. Allocated memory is still 121.6MB. Free memory was 72.6MB in the beginning and 58.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 11:20:03,329 INFO L158 Benchmark]: TraceAbstraction took 200.11ms. Allocated memory is still 121.6MB. Free memory was 57.2MB in the beginning and 85.5MB in the end (delta: -28.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:20:03,329 INFO L158 Benchmark]: Witness Printer took 3.14ms. Allocated memory is still 121.6MB. Free memory is still 85.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:20:03,331 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 100.7MB. Free memory is still 76.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.73ms. Allocated memory is still 121.6MB. Free memory was 87.2MB in the beginning and 76.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.94ms. Allocated memory is still 121.6MB. Free memory was 76.1MB in the beginning and 74.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.63ms. Allocated memory is still 121.6MB. Free memory was 74.3MB in the beginning and 73.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 261.06ms. Allocated memory is still 121.6MB. Free memory was 72.6MB in the beginning and 58.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 200.11ms. Allocated memory is still 121.6MB. Free memory was 57.2MB in the beginning and 85.5MB in the end (delta: -28.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.14ms. Allocated memory is still 121.6MB. Free memory is still 85.5MB. 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=109] [L102] reach_error() VAL [IN=109] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 11:20:03,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8c1372ae8683a9b181ceb7919574ebc960da9cc935a490e3fb100e7f3b19512c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 11:20:05,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 11:20:05,023 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 11:20:05,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 11:20:05,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 11:20:05,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 11:20:05,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 11:20:05,047 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 11:20:05,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 11:20:05,049 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 11:20:05,050 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 11:20:05,051 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 11:20:05,052 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 11:20:05,053 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 11:20:05,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 11:20:05,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 11:20:05,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 11:20:05,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 11:20:05,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 11:20:05,060 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 11:20:05,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 11:20:05,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 11:20:05,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 11:20:05,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 11:20:05,069 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 11:20:05,069 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 11:20:05,069 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 11:20:05,070 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 11:20:05,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 11:20:05,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 11:20:05,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 11:20:05,073 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 11:20:05,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 11:20:05,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 11:20:05,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 11:20:05,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 11:20:05,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 11:20:05,076 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 11:20:05,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 11:20:05,077 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 11:20:05,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 11:20:05,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 11:20:05,104 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 11:20:05,104 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 11:20:05,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 11:20:05,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 11:20:05,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 11:20:05,106 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 11:20:05,106 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 11:20:05,106 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 11:20:05,106 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 11:20:05,106 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 11:20:05,107 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 11:20:05,107 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 11:20:05,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 11:20:05,108 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 11:20:05,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 11:20:05,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 11:20:05,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 11:20:05,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 11:20:05,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 11:20:05,109 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 11:20:05,109 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 11:20:05,109 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 11:20:05,109 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 11:20:05,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 11:20:05,110 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 11:20:05,110 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 11:20:05,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 11:20:05,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 11:20:05,111 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 11:20:05,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:20:05,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 11:20:05,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 11:20:05,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 11:20:05,112 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 11:20:05,112 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 11:20:05,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 11:20:05,112 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 11:20:05,112 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 11:20:05,112 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_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c1372ae8683a9b181ceb7919574ebc960da9cc935a490e3fb100e7f3b19512c [2022-12-14 11:20:05,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 11:20:05,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 11:20:05,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 11:20:05,367 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 11:20:05,367 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 11:20:05,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/gcd_3+newton_1_5.i [2022-12-14 11:20:08,062 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 11:20:08,221 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 11:20:08,222 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i [2022-12-14 11:20:08,227 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/data/a3f6bb413/b98fa823b65f4397ac12b548c7398ab2/FLAGbeb400d6d [2022-12-14 11:20:08,238 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/data/a3f6bb413/b98fa823b65f4397ac12b548c7398ab2 [2022-12-14 11:20:08,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 11:20:08,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 11:20:08,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 11:20:08,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 11:20:08,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 11:20:08,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54fac49e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08, skipping insertion in model container [2022-12-14 11:20:08,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 11:20:08,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 11:20:08,373 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_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[1226,1239] [2022-12-14 11:20:08,390 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_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[2820,2833] [2022-12-14 11:20:08,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:20:08,401 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 11:20:08,411 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_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[1226,1239] [2022-12-14 11:20:08,417 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_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/sv-benchmarks/c/combinations/gcd_3+newton_1_5.i[2820,2833] [2022-12-14 11:20:08,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 11:20:08,429 INFO L208 MainTranslator]: Completed translation [2022-12-14 11:20:08,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08 WrapperNode [2022-12-14 11:20:08,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 11:20:08,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 11:20:08,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 11:20:08,430 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 11:20:08,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,459 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2022-12-14 11:20:08,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 11:20:08,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 11:20:08,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 11:20:08,460 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 11:20:08,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,483 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 11:20:08,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 11:20:08,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 11:20:08,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 11:20:08,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (1/1) ... [2022-12-14 11:20:08,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 11:20:08,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 11:20:08,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 11:20:08,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 11:20:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 11:20:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 11:20:08,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 11:20:08,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 11:20:08,608 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 11:20:08,610 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 11:20:14,995 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 11:20:15,000 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 11:20:15,001 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 11:20:15,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:15 BoogieIcfgContainer [2022-12-14 11:20:15,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 11:20:15,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 11:20:15,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 11:20:15,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 11:20:15,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 11:20:08" (1/3) ... [2022-12-14 11:20:15,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664a47ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:20:15, skipping insertion in model container [2022-12-14 11:20:15,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:20:08" (2/3) ... [2022-12-14 11:20:15,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664a47ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 11:20:15, skipping insertion in model container [2022-12-14 11:20:15,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:15" (3/3) ... [2022-12-14 11:20:15,009 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_5.i [2022-12-14 11:20:15,022 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 11:20:15,022 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 11:20:15,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 11:20:15,060 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;@1f7101cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 11:20:15,060 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 11:20:15,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:20:15,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:20:15,067 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:20:15,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:20:15,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:20:15,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:20:15,072 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2022-12-14 11:20:15,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:20:15,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387945270] [2022-12-14 11:20:15,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:20:15,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:20:15,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:20:15,087 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 11:20:15,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 11:20:16,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 11:20:16,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 11:20:16,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 11:20:16,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 11:20:16,207 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 11:20:16,208 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 11:20:16,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387945270] [2022-12-14 11:20:16,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387945270] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 11:20:16,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 11:20:16,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 11:20:16,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662822609] [2022-12-14 11:20:16,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 11:20:16,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 11:20:16,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 11:20:16,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 11:20:16,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:20:16,235 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:20:16,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 11:20:16,246 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2022-12-14 11:20:16,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 11:20:16,247 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 11:20:16,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 11:20:16,253 INFO L225 Difference]: With dead ends: 47 [2022-12-14 11:20:16,253 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 11:20:16,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 11:20:16,257 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 11:20:16,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 11:20:16,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 11:20:16,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 11:20:16,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:20:16,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 11:20:16,278 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2022-12-14 11:20:16,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 11:20:16,278 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 11:20:16,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 11:20:16,278 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 11:20:16,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 11:20:16,279 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 11:20:16,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 11:20:16,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 11:20:16,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:20:16,481 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 11:20:16,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 11:20:16,483 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2022-12-14 11:20:16,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 11:20:16,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [210698530] [2022-12-14 11:20:16,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 11:20:16,486 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:20:16,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 11:20:16,489 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 11:20:16,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 11:20:30,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:20:30,071 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 11:20:42,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 11:20:42,910 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 11:20:42,910 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 11:20:42,912 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 11:20:42,913 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 11:20:42,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-14 11:20:43,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 11:20:43,124 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 11:20:43,134 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 11:20:43,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 11:20:43 BoogieIcfgContainer [2022-12-14 11:20:43,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 11:20:43,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 11:20:43,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 11:20:43,174 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 11:20:43,174 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:20:15" (3/4) ... [2022-12-14 11:20:43,175 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 11:20:43,199 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 11:20:43,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 11:20:43,199 INFO L158 Benchmark]: Toolchain (without parser) took 34957.95ms. Allocated memory is still 62.9MB. Free memory was 41.8MB in the beginning and 40.2MB in the end (delta: 1.6MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-12-14 11:20:43,199 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory is still 26.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:20:43,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.46ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 29.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 11:20:43,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.87ms. Allocated memory is still 62.9MB. Free memory was 29.5MB in the beginning and 27.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 11:20:43,200 INFO L158 Benchmark]: Boogie Preprocessor took 26.20ms. Allocated memory is still 62.9MB. Free memory was 27.6MB in the beginning and 43.8MB in the end (delta: -16.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-12-14 11:20:43,200 INFO L158 Benchmark]: RCFGBuilder took 6516.20ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 32.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 11:20:43,201 INFO L158 Benchmark]: TraceAbstraction took 28168.87ms. Allocated memory is still 62.9MB. Free memory was 31.2MB in the beginning and 42.0MB in the end (delta: -10.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2022-12-14 11:20:43,201 INFO L158 Benchmark]: Witness Printer took 25.51ms. Allocated memory is still 62.9MB. Free memory was 42.0MB in the beginning and 40.2MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 11:20:43,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory is still 26.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.46ms. Allocated memory is still 62.9MB. Free memory was 41.6MB in the beginning and 29.5MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.87ms. Allocated memory is still 62.9MB. Free memory was 29.5MB in the beginning and 27.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.20ms. Allocated memory is still 62.9MB. Free memory was 27.6MB in the beginning and 43.8MB in the end (delta: -16.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * RCFGBuilder took 6516.20ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 32.0MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 28168.87ms. Allocated memory is still 62.9MB. Free memory was 31.2MB in the beginning and 42.0MB in the end (delta: -10.8MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Witness Printer took 25.51ms. Allocated memory is still 62.9MB. Free memory was 42.0MB in the beginning and 40.2MB in the end (delta: 1.8MB). 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 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.7001767754554749, \result=-0.644385576248169, x=-0.7001767754554749] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.7001767754554749, \result=0.7650542259216309, x=-0.7001767754554749] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.7001767754554749, x=0.1420975923538208] [L102] reach_error() VAL [IN=-0.7001767754554749, x=0.1420975923538208] - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 28.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 14.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 11:20:43,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_855668a6-f71e-4c4c-8676-30ff0e1e7b8a/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE