./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan --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 b5a9a5f04ffebcbeddfcdcc0054cf362a3fa4d7b .............................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan --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 b5a9a5f04ffebcbeddfcdcc0054cf362a3fa4d7b .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 05:33:45,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:33:45,316 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:33:45,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:33:45,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:33:45,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:33:45,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:33:45,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:33:45,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:33:45,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:33:45,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:33:45,354 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:33:45,354 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:33:45,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:33:45,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:33:45,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:33:45,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:33:45,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:33:45,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:33:45,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:33:45,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:33:45,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:33:45,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:33:45,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:33:45,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:33:45,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:33:45,373 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:33:45,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:33:45,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:33:45,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:33:45,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:33:45,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:33:45,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:33:45,378 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:33:45,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:33:45,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:33:45,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:33:45,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:33:45,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:33:45,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:33:45,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:33:45,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 05:33:45,404 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:33:45,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:33:45,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:33:45,405 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:33:45,405 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:33:45,405 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:33:45,405 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 05:33:45,406 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:33:45,406 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:33:45,406 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 05:33:45,406 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 05:33:45,406 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:33:45,406 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 05:33:45,406 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 05:33:45,407 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 05:33:45,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:33:45,407 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:33:45,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 05:33:45,408 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:33:45,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:33:45,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:33:45,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:33:45,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:33:45,408 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:33:45,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:33:45,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:33:45,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:33:45,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:33:45,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:33:45,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:33:45,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:33:45,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:33:45,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:33:45,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:33:45,410 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 05:33:45,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 05:33:45,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:33:45,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:33:45,410 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:33:45,411 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5a9a5f04ffebcbeddfcdcc0054cf362a3fa4d7b [2020-12-09 05:33:45,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:33:45,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:33:45,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:33:45,621 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:33:45,622 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:33:45,623 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2020-12-09 05:33:45,664 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data/94a6e833e/eb25bf6e9e8741f2b7df6379ae8bcb80/FLAG85921cbab [2020-12-09 05:33:46,019 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:33:46,020 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2020-12-09 05:33:46,024 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data/94a6e833e/eb25bf6e9e8741f2b7df6379ae8bcb80/FLAG85921cbab [2020-12-09 05:33:46,035 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data/94a6e833e/eb25bf6e9e8741f2b7df6379ae8bcb80 [2020-12-09 05:33:46,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:33:46,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:33:46,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:33:46,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:33:46,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:33:46,043 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a152a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46, skipping insertion in model container [2020-12-09 05:33:46,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:33:46,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:33:46,152 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2020-12-09 05:33:46,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:33:46,168 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:33:46,176 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2020-12-09 05:33:46,188 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:33:46,204 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:33:46,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46 WrapperNode [2020-12-09 05:33:46,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:33:46,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:33:46,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:33:46,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:33:46,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:33:46,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:33:46,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:33:46,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:33:46,234 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,240 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... [2020-12-09 05:33:46,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:33:46,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:33:46,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:33:46,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:33:46,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:33:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 05:33:46,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:33:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 05:33:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 05:33:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 05:33:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:33:46,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:33:46,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 05:33:46,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 05:33:46,571 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:33:46,572 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-09 05:33:46,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:33:46 BoogieIcfgContainer [2020-12-09 05:33:46,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:33:46,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:33:46,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:33:46,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:33:46,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:33:46" (1/3) ... [2020-12-09 05:33:46,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cc0d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:33:46, skipping insertion in model container [2020-12-09 05:33:46,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:46" (2/3) ... [2020-12-09 05:33:46,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37cc0d5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:33:46, skipping insertion in model container [2020-12-09 05:33:46,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:33:46" (3/3) ... [2020-12-09 05:33:46,582 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2020-12-09 05:33:46,597 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:33:46,600 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 05:33:46,610 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 05:33:46,631 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:33:46,631 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:33:46,631 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:33:46,632 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:33:46,632 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:33:46,632 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:33:46,632 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:33:46,632 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:33:46,640 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-12-09 05:33:46,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-09 05:33:46,644 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:33:46,644 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-09 05:33:46,644 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:33:46,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:33:46,648 INFO L82 PathProgramCache]: Analyzing trace with hash 60993, now seen corresponding path program 1 times [2020-12-09 05:33:46,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 05:33:46,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889595945] [2020-12-09 05:33:46,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 05:33:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 05:33:46,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 05:33:46,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 05:33:46,769 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 05:33:46,783 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 05:33:46,784 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 05:33:46,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 05:33:46,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 05:33:46 BoogieIcfgContainer [2020-12-09 05:33:46,799 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 05:33:46,800 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 05:33:46,800 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 05:33:46,800 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 05:33:46,801 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:33:46" (3/4) ... [2020-12-09 05:33:46,803 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 05:33:46,803 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 05:33:46,805 INFO L168 Benchmark]: Toolchain (without parser) took 765.15 ms. Allocated memory is still 98.6 MB. Free memory was 78.2 MB in the beginning and 69.4 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2020-12-09 05:33:46,805 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 98.6 MB. Free memory is still 72.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:33:46,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 164.35 ms. Allocated memory is still 98.6 MB. Free memory was 78.2 MB in the beginning and 77.5 MB in the end (delta: 682.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 05:33:46,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.01 ms. Allocated memory is still 98.6 MB. Free memory was 77.5 MB in the beginning and 76.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:33:46,807 INFO L168 Benchmark]: Boogie Preprocessor took 15.37 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 75.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:33:46,808 INFO L168 Benchmark]: RCFGBuilder took 329.44 ms. Allocated memory is still 98.6 MB. Free memory was 75.0 MB in the beginning and 53.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-09 05:33:46,808 INFO L168 Benchmark]: TraceAbstraction took 223.97 ms. Allocated memory is still 98.6 MB. Free memory was 53.3 MB in the beginning and 69.8 MB in the end (delta: -16.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:33:46,809 INFO L168 Benchmark]: Witness Printer took 3.43 ms. Allocated memory is still 98.6 MB. Free memory was 69.8 MB in the beginning and 69.4 MB in the end (delta: 458.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:33:46,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 98.6 MB. Free memory is still 72.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 164.35 ms. Allocated memory is still 98.6 MB. Free memory was 78.2 MB in the beginning and 77.5 MB in the end (delta: 682.8 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.01 ms. Allocated memory is still 98.6 MB. Free memory was 77.5 MB in the beginning and 76.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.37 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 75.0 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 329.44 ms. Allocated memory is still 98.6 MB. Free memory was 75.0 MB in the beginning and 53.9 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 223.97 ms. Allocated memory is still 98.6 MB. Free memory was 53.3 MB in the beginning and 69.8 MB in the end (delta: -16.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.43 ms. Allocated memory is still 98.6 MB. Free memory was 69.8 MB in the beginning and 69.4 MB in the end (delta: 458.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: 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 48, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryArithmeticFLOAToperation at line 22. Possible FailurePath: [L45] float a,r; [L47] a = __VERIFIER_nondet_float() [L11] COND FALSE !(!cond) [L22] float xhalf = 0.5f*x; [L23] union float_int i; [L24] i.f = x [L25] EXPR i.i [L25] i.i = 0x5f3759df - (i.i>>1) [L26] EXPR i.f [L26] x = i.f [L27] x = x*(1.5f-xhalf*x*x) [L28] return x; [L28] return x; [L50] r = InvSqrt(a) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=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, 3 NumberOfCodeBlocks, 3 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 05:33:48,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 05:33:48,485 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 05:33:48,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 05:33:48,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 05:33:48,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 05:33:48,513 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 05:33:48,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 05:33:48,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 05:33:48,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 05:33:48,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 05:33:48,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 05:33:48,519 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 05:33:48,520 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 05:33:48,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 05:33:48,522 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 05:33:48,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 05:33:48,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 05:33:48,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 05:33:48,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 05:33:48,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 05:33:48,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 05:33:48,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 05:33:48,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 05:33:48,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 05:33:48,534 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 05:33:48,534 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 05:33:48,535 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 05:33:48,535 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 05:33:48,536 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 05:33:48,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 05:33:48,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 05:33:48,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 05:33:48,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 05:33:48,539 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 05:33:48,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 05:33:48,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 05:33:48,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 05:33:48,540 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 05:33:48,541 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 05:33:48,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 05:33:48,542 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 05:33:48,559 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 05:33:48,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 05:33:48,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 05:33:48,560 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 05:33:48,560 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 05:33:48,560 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 05:33:48,560 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 05:33:48,560 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 05:33:48,560 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 05:33:48,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 05:33:48,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 05:33:48,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 05:33:48,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 05:33:48,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 05:33:48,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 05:33:48,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 05:33:48,562 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 05:33:48,562 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 05:33:48,562 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 05:33:48,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 05:33:48,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 05:33:48,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 05:33:48,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 05:33:48,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 05:33:48,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 05:33:48,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 05:33:48,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:33:48,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 05:33:48,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 05:33:48,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 05:33:48,563 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 05:33:48,563 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 05:33:48,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 05:33:48,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 05:33:48,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 05:33:48,564 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-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b5a9a5f04ffebcbeddfcdcc0054cf362a3fa4d7b [2020-12-09 05:33:48,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 05:33:48,805 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 05:33:48,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 05:33:48,808 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 05:33:48,809 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 05:33:48,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/../../sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2020-12-09 05:33:48,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data/9e7d2d9df/5ad6755164404c73987705d5de2d38b5/FLAGe85ed2ab4 [2020-12-09 05:33:49,295 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 05:33:49,295 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c [2020-12-09 05:33:49,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data/9e7d2d9df/5ad6755164404c73987705d5de2d38b5/FLAGe85ed2ab4 [2020-12-09 05:33:49,310 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/data/9e7d2d9df/5ad6755164404c73987705d5de2d38b5 [2020-12-09 05:33:49,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 05:33:49,313 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 05:33:49,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 05:33:49,313 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 05:33:49,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 05:33:49,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59353379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49, skipping insertion in model container [2020-12-09 05:33:49,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 05:33:49,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 05:33:49,434 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2020-12-09 05:33:49,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:33:49,459 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 05:33:49,477 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/sv-benchmarks/c/float-benchs/inv_sqrt_Quake.c[585,598] [2020-12-09 05:33:49,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 05:33:49,508 INFO L208 MainTranslator]: Completed translation [2020-12-09 05:33:49,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49 WrapperNode [2020-12-09 05:33:49,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 05:33:49,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 05:33:49,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 05:33:49,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 05:33:49,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 05:33:49,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 05:33:49,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 05:33:49,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 05:33:49,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,557 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,567 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... [2020-12-09 05:33:49,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 05:33:49,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 05:33:49,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 05:33:49,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 05:33:49,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 05:33:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 05:33:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 05:33:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 05:33:49,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 05:33:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 05:33:49,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 05:33:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 05:33:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 05:33:49,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 05:33:51,998 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 05:33:51,998 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-09 05:33:51,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:33:51 BoogieIcfgContainer [2020-12-09 05:33:52,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 05:33:52,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 05:33:52,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 05:33:52,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 05:33:52,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 05:33:49" (1/3) ... [2020-12-09 05:33:52,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d8acc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:33:52, skipping insertion in model container [2020-12-09 05:33:52,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:33:49" (2/3) ... [2020-12-09 05:33:52,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45d8acc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 05:33:52, skipping insertion in model container [2020-12-09 05:33:52,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:33:51" (3/3) ... [2020-12-09 05:33:52,005 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_sqrt_Quake.c [2020-12-09 05:33:52,014 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 05:33:52,016 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 05:33:52,026 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 05:33:52,042 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 05:33:52,042 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 05:33:52,042 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 05:33:52,043 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 05:33:52,043 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 05:33:52,043 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 05:33:52,043 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 05:33:52,043 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 05:33:52,051 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-12-09 05:33:52,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 05:33:52,054 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:33:52,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:33:52,055 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:33:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:33:52,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2020-12-09 05:33:52,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:33:52,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398248032] [2020-12-09 05:33:52,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 05:33:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:33:52,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 05:33:52,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:33:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:33:52,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 05:33:52,321 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398248032] [2020-12-09 05:33:52,321 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:33:52,321 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 05:33:52,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422008455] [2020-12-09 05:33:52,324 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 05:33:52,325 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:33:52,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 05:33:52,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 05:33:52,335 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2020-12-09 05:33:52,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:33:52,344 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-12-09 05:33:52,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 05:33:52,345 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 05:33:52,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:33:52,351 INFO L225 Difference]: With dead ends: 21 [2020-12-09 05:33:52,351 INFO L226 Difference]: Without dead ends: 8 [2020-12-09 05:33:52,353 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 05:33:52,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-09 05:33:52,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-09 05:33:52,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-09 05:33:52,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-12-09 05:33:52,373 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-12-09 05:33:52,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:33:52,373 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-12-09 05:33:52,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 05:33:52,374 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-12-09 05:33:52,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 05:33:52,374 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 05:33:52,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 05:33:52,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 05:33:52,576 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 05:33:52,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 05:33:52,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2020-12-09 05:33:52,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 05:33:52,582 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065973871] [2020-12-09 05:33:52,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1341942e-ea00-4de8-a7c8-9410c764d8c7/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 05:33:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 05:33:53,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 05:33:53,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 05:33:56,121 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) c_currentRoundingMode 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul c_currentRoundingMode .cse1 (fp.sub c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 3.0 2.0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |c_ULTIMATE.start_InvSqrt_#res|)))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2020-12-09 05:33:56,136 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 05:34:00,204 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 05:34:12,461 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (or (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) .cse3) (and (= (bvadd c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse5 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (let ((.cse4 (let ((.cse6 (let ((.cse7 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse7) ((_ extract 30 23) .cse7) ((_ extract 22 0) .cse7))))) (fp.mul roundNearestTiesToEven .cse6 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse5) .cse6) .cse6)))))) (and (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven .cse4) ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.geq .cse4 (_ +zero 8 24)) (fp.leq .cse5 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))))) (and .cse3 (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse8 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.geq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse9 (let ((.cse10 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse10) ((_ extract 30 23) .cse10) ((_ extract 22 0) .cse10))))) (fp.mul roundNearestTiesToEven .cse9 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse8) .cse9) .cse9))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse8 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)))))))) is different from false [2020-12-09 05:34:22,666 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse3) .cse3))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))))))) is different from false [2020-12-09 05:34:24,708 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse1 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (not (fp.geq (let ((.cse0 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul roundNearestTiesToEven .cse0 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse1) .cse0) .cse0)))) (_ +zero 8 24))) (fp.geq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))) (fp.leq .cse1 ((_ to_fp 8 24) roundNearestTiesToEven 100.0))))) (exists ((v_prenex_1 (_ BitVec 32))) (let ((.cse4 (fp ((_ extract 31 31) v_prenex_1) ((_ extract 30 23) v_prenex_1) ((_ extract 22 0) v_prenex_1)))) (and (not (fp.leq ((_ to_fp 11 53) roundNearestTiesToEven (let ((.cse3 (let ((.cse5 (bvadd (bvneg (bvashr v_prenex_1 (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse5) ((_ extract 30 23) .cse5) ((_ extract 22 0) .cse5))))) (fp.mul roundNearestTiesToEven .cse3 (fp.sub roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 3.0 2.0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) .cse4) .cse3) .cse3))))) ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (fp.leq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven 100.0)) (fp.geq .cse4 ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 10.0))))))) is different from true [2020-12-09 05:34:24,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 05:34:24,709 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 05:34:24,710 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065973871] [2020-12-09 05:34:24,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 05:34:24,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 05:34:24,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999156245] [2020-12-09 05:34:24,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 05:34:24,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 05:34:24,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 05:34:24,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=13, Unknown=4, NotChecked=24, Total=56 [2020-12-09 05:34:24,712 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 8 states. [2020-12-09 05:34:24,897 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 14 [2020-12-09 05:34:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 05:34:26,980 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-12-09 05:34:27,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-09 05:34:27,010 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2020-12-09 05:34:27,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 05:34:27,010 INFO L225 Difference]: With dead ends: 8 [2020-12-09 05:34:27,011 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 05:34:27,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=20, Invalid=18, Unknown=4, NotChecked=30, Total=72 [2020-12-09 05:34:27,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 05:34:27,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 05:34:27,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 05:34:27,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 05:34:27,012 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-12-09 05:34:27,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 05:34:27,012 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 05:34:27,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 05:34:27,012 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 05:34:27,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 05:34:27,213 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 05:34:27,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 05:34:37,448 WARN L197 SmtUtils]: Spent 10.20 s on a formula simplification that was a NOOP. DAG size: 37 [2020-12-09 05:34:37,450 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 05:34:37,450 INFO L262 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-12-09 05:34:37,450 INFO L262 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-12-09 05:34:37,451 INFO L262 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-12-09 05:34:37,451 INFO L265 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: true [2020-12-09 05:34:37,451 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 05:34:37,451 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 05:34:37,451 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 05:34:37,451 INFO L258 CegarLoopResult]: At program point L28(lines 20 29) the Hoare annotation is: (and (exists ((|v_skolemized_q#valueAsBitvector_3| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_3|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_3|)))) (and (fp.leq .cse0 ((_ to_fp 8 24) currentRoundingMode 100.0)) (fp.geq .cse0 ((_ to_fp 8 24) currentRoundingMode (/ 1.0 10.0))) (= (let ((.cse1 (let ((.cse2 (bvadd (bvneg (bvashr |v_skolemized_q#valueAsBitvector_3| (_ bv1 32))) (_ bv1597463007 32)))) (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2))))) (fp.mul currentRoundingMode .cse1 (fp.sub currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 3.0 2.0)) (fp.mul currentRoundingMode (fp.mul currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (/ 1.0 2.0)) .cse0) .cse1) .cse1)))) |ULTIMATE.start_InvSqrt_#res|)))) (= currentRoundingMode roundNearestTiesToEven)) [2020-12-09 05:34:37,452 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-12-09 05:34:37,452 INFO L265 CegarLoopResult]: At program point L53(lines 43 54) the Hoare annotation is: true [2020-12-09 05:34:37,452 INFO L262 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2020-12-09 05:34:37,458 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:456) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:135) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) 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) [2020-12-09 05:34:37,461 INFO L168 Benchmark]: Toolchain (without parser) took 48147.80 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 40.2 MB in the beginning and 32.5 MB in the end (delta: 7.8 MB). Peak memory consumption was 22.4 MB. Max. memory is 16.1 GB. [2020-12-09 05:34:37,462 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 43.5 MB in the beginning and 43.5 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:34:37,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.69 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 43.8 MB in the end (delta: -3.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 05:34:37,463 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.87 ms. Allocated memory is still 60.8 MB. Free memory was 43.8 MB in the beginning and 42.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 05:34:37,464 INFO L168 Benchmark]: Boogie Preprocessor took 26.88 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 40.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 05:34:37,464 INFO L168 Benchmark]: RCFGBuilder took 2426.73 ms. Allocated memory is still 60.8 MB. Free memory was 40.7 MB in the beginning and 27.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 05:34:37,465 INFO L168 Benchmark]: TraceAbstraction took 45459.28 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 26.7 MB in the beginning and 32.5 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-12-09 05:34:37,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 60.8 MB. Free memory was 43.5 MB in the beginning and 43.5 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 195.69 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 43.8 MB in the end (delta: -3.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.87 ms. Allocated memory is still 60.8 MB. Free memory was 43.8 MB in the beginning and 42.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.88 ms. Allocated memory is still 60.8 MB. Free memory was 42.2 MB in the beginning and 40.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2426.73 ms. Allocated memory is still 60.8 MB. Free memory was 40.7 MB in the beginning and 27.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 45459.28 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 26.7 MB in the beginning and 32.5 MB in the end (delta: -5.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 1 - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...