./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs --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 c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 ................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs --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 c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 ...................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:54:55,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:54:55,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:54:55,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:54:55,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:54:55,335 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:54:55,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:54:55,339 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:54:55,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:54:55,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:54:55,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:54:55,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:54:55,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:54:55,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:54:55,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:54:55,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:54:55,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:54:55,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:54:55,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:54:55,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:54:55,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:54:55,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:54:55,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:54:55,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:54:55,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:54:55,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:54:55,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:54:55,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:54:55,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:54:55,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:54:55,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:54:55,375 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:54:55,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:54:55,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:54:55,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:54:55,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:54:55,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:54:55,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:54:55,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:54:55,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:54:55,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:54:55,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:54:55,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:54:55,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:54:55,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:54:55,417 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:54:55,418 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:54:55,418 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:54:55,419 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:54:55,419 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:54:55,422 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:54:55,423 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:54:55,423 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:54:55,423 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:54:55,423 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:54:55,424 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:54:55,424 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:54:55,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:54:55,425 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:54:55,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:54:55,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:54:55,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:54:55,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:54:55,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:54:55,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:54:55,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:54:55,428 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:54:55,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:54:55,428 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:54:55,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:54:55,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:54:55,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:54:55,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:54:55,431 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:54:55,431 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:54:55,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:54:55,432 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:54:55,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:54:55,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:54:55,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:54:55,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:54:55,433 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_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 [2021-10-16 02:54:55,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:54:55,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:54:55,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:54:55,742 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:54:55,743 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:54:55,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2021-10-16 02:54:55,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data/47edee131/2d31cdb481bf45c9885f5cf9213196e2/FLAG87ce91654 [2021-10-16 02:54:56,318 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:54:56,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2021-10-16 02:54:56,329 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data/47edee131/2d31cdb481bf45c9885f5cf9213196e2/FLAG87ce91654 [2021-10-16 02:54:56,694 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data/47edee131/2d31cdb481bf45c9885f5cf9213196e2 [2021-10-16 02:54:56,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:54:56,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:54:56,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:54:56,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:54:56,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:54:56,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:54:56" (1/1) ... [2021-10-16 02:54:56,710 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@777f0aba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:56, skipping insertion in model container [2021-10-16 02:54:56,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:54:56" (1/1) ... [2021-10-16 02:54:56,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:54:56,738 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:54:56,941 WARN L228 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_9c2f76ea-e908-44ad-8f74-51a734d4a25c/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2021-10-16 02:54:56,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:54:56,954 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:54:57,003 WARN L228 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_9c2f76ea-e908-44ad-8f74-51a734d4a25c/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2021-10-16 02:54:57,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:54:57,049 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:54:57,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57 WrapperNode [2021-10-16 02:54:57,050 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:54:57,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:54:57,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:54:57,052 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:54:57,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,124 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:54:57,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:54:57,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:54:57,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:54:57,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,187 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:54:57,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:54:57,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:54:57,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:54:57,210 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (1/1) ... [2021-10-16 02:54:57,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:54:57,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:54:57,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:54:57,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:54:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:54:57,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:54:57,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 02:54:57,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:54:57,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 02:54:57,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:54:57,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:54:57,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:54:57,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-16 02:54:57,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:54:57,933 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:54:57,933 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-16 02:54:57,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:54:57 BoogieIcfgContainer [2021-10-16 02:54:57,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:54:57,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:54:57,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:54:57,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:54:57,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:54:56" (1/3) ... [2021-10-16 02:54:57,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f377546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:54:57, skipping insertion in model container [2021-10-16 02:54:57,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:54:57" (2/3) ... [2021-10-16 02:54:57,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f377546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:54:57, skipping insertion in model container [2021-10-16 02:54:57,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:54:57" (3/3) ... [2021-10-16 02:54:57,948 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2021-10-16 02:54:57,953 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:54:57,953 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:54:58,011 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:54:58,017 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:54:58,017 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:54:58,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 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) [2021-10-16 02:54:58,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:54:58,037 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:58,038 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:54:58,039 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:54:58,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:58,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1403492000, now seen corresponding path program 1 times [2021-10-16 02:54:58,067 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:54:58,067 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379626918] [2021-10-16 02:54:58,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:58,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:54:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:54:58,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:58,236 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:54:58,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379626918] [2021-10-16 02:54:58,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379626918] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:54:58,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:54:58,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:54:58,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044654655] [2021-10-16 02:54:58,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:54:58,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:54:58,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:54:58,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:54:58,259 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-16 02:54:58,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:54:58,274 INFO L93 Difference]: Finished difference Result 41 states and 61 transitions. [2021-10-16 02:54:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:54:58,276 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-10-16 02:54:58,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:54:58,283 INFO L225 Difference]: With dead ends: 41 [2021-10-16 02:54:58,284 INFO L226 Difference]: Without dead ends: 19 [2021-10-16 02:54:58,286 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:54:58,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-16 02:54:58,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-16 02:54:58,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 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) [2021-10-16 02:54:58,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-10-16 02:54:58,316 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 7 [2021-10-16 02:54:58,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:54:58,317 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-16 02:54:58,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-10-16 02:54:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-10-16 02:54:58,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:54:58,318 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:58,318 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:54:58,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:54:58,318 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:54:58,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:58,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1572008545, now seen corresponding path program 1 times [2021-10-16 02:54:58,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:54:58,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452582160] [2021-10-16 02:54:58,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:54:58,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:54:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:54:58,394 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:54:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:54:58,489 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:54:58,490 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:54:58,492 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:54:58,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:54:58,502 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:54:58,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:54:58 BoogieIcfgContainer [2021-10-16 02:54:58,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:54:58,553 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:54:58,553 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:54:58,554 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:54:58,554 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:54:57" (3/4) ... [2021-10-16 02:54:58,557 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:54:58,558 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:54:58,561 INFO L168 Benchmark]: Toolchain (without parser) took 1861.13 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 75.5 MB in the beginning and 79.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:58,561 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 59.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:54:58,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.67 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 78.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:58,565 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.40 ms. Allocated memory is still 107.0 MB. Free memory was 78.1 MB in the beginning and 76.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:58,570 INFO L168 Benchmark]: Boogie Preprocessor took 68.55 ms. Allocated memory is still 107.0 MB. Free memory was 76.0 MB in the beginning and 74.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:58,572 INFO L168 Benchmark]: RCFGBuilder took 743.41 ms. Allocated memory is still 107.0 MB. Free memory was 74.3 MB in the beginning and 55.0 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:54:58,572 INFO L168 Benchmark]: TraceAbstraction took 613.19 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 54.2 MB in the beginning and 79.3 MB in the end (delta: -25.1 MB). Peak memory consumption was 958.9 kB. Max. memory is 16.1 GB. [2021-10-16 02:54:58,573 INFO L168 Benchmark]: Witness Printer took 4.52 ms. Allocated memory is still 130.0 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:54:58,580 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 107.0 MB. Free memory is still 59.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.67 ms. Allocated memory is still 107.0 MB. Free memory was 75.2 MB in the beginning and 78.1 MB in the end (delta: -2.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.40 ms. Allocated memory is still 107.0 MB. Free memory was 78.1 MB in the beginning and 76.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.55 ms. Allocated memory is still 107.0 MB. Free memory was 76.0 MB in the beginning and 74.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 743.41 ms. Allocated memory is still 107.0 MB. Free memory was 74.3 MB in the beginning and 55.0 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 613.19 ms. Allocated memory was 107.0 MB in the beginning and 130.0 MB in the end (delta: 23.1 MB). Free memory was 54.2 MB in the beginning and 79.3 MB in the end (delta: -25.1 MB). Peak memory consumption was 958.9 kB. Max. memory is 16.1 GB. * Witness Printer took 4.52 ms. Allocated memory is still 130.0 MB. Free memory is still 79.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 133]: 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 132, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L129] float x = 1.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L68] COND TRUE ix >= 0x50800000 [L69] COND FALSE !(((ix) > 0x7f800000L)) [L71] COND TRUE hx > 0 [L72] EXPR atanhi_atan[3] [L72] EXPR atanlo_atan[3] [L72] return atanhi_atan[3] + atanlo_atan[3]; [L130] float res = atan_float(x); [L132] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L133] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 491.6ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.5ms, AutomataDifference: 41.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 24 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.2ms SsaConstructionTime, 103.5ms SatisfiabilityAnalysisTime, 58.6ms InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:54:58,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:55:01,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:55:01,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:55:01,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:55:01,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:55:01,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:55:01,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:55:01,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:55:01,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:55:01,093 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:55:01,094 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:55:01,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:55:01,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:55:01,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:55:01,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:55:01,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:55:01,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:55:01,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:55:01,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:55:01,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:55:01,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:55:01,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:55:01,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:55:01,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:55:01,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:55:01,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:55:01,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:55:01,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:55:01,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:55:01,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:55:01,124 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:55:01,125 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:55:01,126 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:55:01,127 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:55:01,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:55:01,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:55:01,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:55:01,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:55:01,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:55:01,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:55:01,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:55:01,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:55:01,182 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:55:01,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:55:01,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:55:01,184 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:55:01,184 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:55:01,185 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:55:01,185 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:55:01,185 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:55:01,185 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:55:01,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:55:01,188 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:55:01,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:55:01,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:55:01,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:55:01,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:55:01,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:55:01,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:55:01,190 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:55:01,190 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:55:01,190 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:55:01,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:55:01,191 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:55:01,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:55:01,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:55:01,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:55:01,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:55:01,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:55:01,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:55:01,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:55:01,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:55:01,193 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:55:01,193 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:55:01,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:55:01,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:55:01,194 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:55:01,194 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_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c46c21346fa3a14a7874ed8ff9a4a0a79ae6f208 [2021-10-16 02:55:01,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:55:01,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:55:01,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:55:01,647 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:55:01,648 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:55:01,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2021-10-16 02:55:01,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data/dd1798108/73473b3f2d3c421d8d629875ac32a4d4/FLAG629cb11e6 [2021-10-16 02:55:02,316 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:55:02,318 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c [2021-10-16 02:55:02,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data/dd1798108/73473b3f2d3c421d8d629875ac32a4d4/FLAG629cb11e6 [2021-10-16 02:55:02,637 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/data/dd1798108/73473b3f2d3c421d8d629875ac32a4d4 [2021-10-16 02:55:02,640 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:55:02,642 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:55:02,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:55:02,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:55:02,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:55:02,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:02,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10180f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02, skipping insertion in model container [2021-10-16 02:55:02,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:02,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:55:02,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:55:02,890 WARN L228 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_9c2f76ea-e908-44ad-8f74-51a734d4a25c/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2021-10-16 02:55:02,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:55:02,910 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:55:02,955 WARN L228 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_9c2f76ea-e908-44ad-8f74-51a734d4a25c/sv-benchmarks/c/float-newlib/float_req_bl_0621a.c[3196,3209] [2021-10-16 02:55:02,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:55:02,983 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:55:02,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02 WrapperNode [2021-10-16 02:55:02,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:55:02,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:55:02,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:55:02,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:55:02,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:55:03,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:55:03,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:55:03,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:55:03,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:55:03,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:55:03,126 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:55:03,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:55:03,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (1/1) ... [2021-10-16 02:55:03,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:55:03,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:55:03,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:55:03,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:55:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-16 02:55:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:55:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:55:03,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-16 02:55:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:55:03,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:55:03,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:55:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-16 02:55:03,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:55:03,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:55:14,490 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:55:14,491 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-16 02:55:14,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:14 BoogieIcfgContainer [2021-10-16 02:55:14,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:55:14,495 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:55:14,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:55:14,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:55:14,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:55:02" (1/3) ... [2021-10-16 02:55:14,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4038204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:14, skipping insertion in model container [2021-10-16 02:55:14,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:55:02" (2/3) ... [2021-10-16 02:55:14,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4038204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:55:14, skipping insertion in model container [2021-10-16 02:55:14,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:55:14" (3/3) ... [2021-10-16 02:55:14,502 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0621a.c [2021-10-16 02:55:14,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:55:14,508 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:55:14,559 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:55:14,572 INFO L339 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:55:14,573 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:55:14,587 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.6333333333333333) internal successors, (49), 31 states have internal predecessors, (49), 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) [2021-10-16 02:55:14,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:55:14,593 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:55:14,593 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:55:14,594 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:55:14,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:55:14,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1906423550, now seen corresponding path program 1 times [2021-10-16 02:55:14,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:55:14,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540900630] [2021-10-16 02:55:14,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:55:14,615 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:55:14,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:55:14,618 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:55:14,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:55:14,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:55:14,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:55:14,920 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms at de.uni_freiburg.informatik.ultimate.logic.NoopScript.annotate(NoopScript.java:577) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.annotate(WrapperScript.java:282) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertCodeBlocks.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertTerm(AnnotateAndAssertConjunctsOfCodeBlocks.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertConjuncts(AnnotateAndAssertConjunctsOfCodeBlocks.java:135) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAssertConjunctsOfCodeBlocks.annotateAndAssertNonCall(AnnotateAndAssertConjunctsOfCodeBlocks.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:101) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:312) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:211) ... 31 more [2021-10-16 02:55:14,924 INFO L168 Benchmark]: Toolchain (without parser) took 12281.25 ms. Allocated memory is still 67.1 MB. Free memory was 45.6 MB in the beginning and 35.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:14,925 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 47.0 MB in the end (delta: 50.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:14,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 341.23 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 32.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:14,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.38 ms. Allocated memory is still 67.1 MB. Free memory was 32.0 MB in the beginning and 49.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:14,927 INFO L168 Benchmark]: Boogie Preprocessor took 70.29 ms. Allocated memory is still 67.1 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:14,928 INFO L168 Benchmark]: RCFGBuilder took 11367.92 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 45.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:14,928 INFO L168 Benchmark]: TraceAbstraction took 427.46 ms. Allocated memory is still 67.1 MB. Free memory was 45.2 MB in the beginning and 35.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:55:14,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 47.0 MB in the end (delta: 50.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 341.23 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 32.0 MB in the end (delta: 13.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 66.38 ms. Allocated memory is still 67.1 MB. Free memory was 32.0 MB in the beginning and 49.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.29 ms. Allocated memory is still 67.1 MB. Free memory was 49.1 MB in the beginning and 47.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 11367.92 ms. Allocated memory is still 67.1 MB. Free memory was 47.0 MB in the beginning and 45.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 427.46 ms. Allocated memory is still 67.1 MB. Free memory was 45.2 MB in the beginning and 35.9 MB in the end (delta: 9.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Cannot name open terms: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:232) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:55:15,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9c2f76ea-e908-44ad-8f74-51a734d4a25c/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...