./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8 --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 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 .................................................................................................................................................................................................................................................................................................................................................................................................................. 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_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8 --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 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 ....................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 07:37:44,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:37:44,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:37:44,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:37:44,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:37:44,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:37:44,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:37:44,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:37:44,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:37:44,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:37:44,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:37:44,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:37:44,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:37:44,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:37:44,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:37:44,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:37:44,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:37:44,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:37:44,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:37:44,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:37:44,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:37:44,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:37:44,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:37:44,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:37:44,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:37:44,634 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:37:44,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:37:44,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:37:44,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:37:44,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:37:44,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:37:44,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:37:44,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:37:44,655 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:37:44,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:37:44,657 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:37:44,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:37:44,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:37:44,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:37:44,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:37:44,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:37:44,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:37:44,715 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:37:44,716 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:37:44,717 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:37:44,718 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:37:44,718 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:37:44,718 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:37:44,718 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:37:44,724 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:37:44,725 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:37:44,725 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:37:44,726 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:37:44,726 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:37:44,727 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:37:44,727 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:37:44,727 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:37:44,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:37:44,728 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:37:44,728 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:37:44,728 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:37:44,728 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:37:44,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:37:44,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:37:44,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:37:44,729 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:37:44,729 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:37:44,730 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:37:44,730 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:37:44,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:37:44,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:37:44,732 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:37:44,732 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:37:44,733 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:37:44,733 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:37:44,733 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:37:44,733 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:37:44,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:37:44,734 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:37:44,734 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:37:44,734 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:37:44,734 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_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 [2021-10-13 07:37:45,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:37:45,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:37:45,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:37:45,111 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:37:45,112 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:37:45,113 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-10-13 07:37:45,208 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data/411bacb86/5e45f590d8814a0792416d46fb1b5609/FLAGee1b587f7 [2021-10-13 07:37:45,707 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:37:45,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-10-13 07:37:45,723 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data/411bacb86/5e45f590d8814a0792416d46fb1b5609/FLAGee1b587f7 [2021-10-13 07:37:46,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data/411bacb86/5e45f590d8814a0792416d46fb1b5609 [2021-10-13 07:37:46,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:37:46,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:37:46,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:37:46,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:37:46,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:37:46,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fbb5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46, skipping insertion in model container [2021-10-13 07:37:46,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:37:46,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:37:46,346 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_585c42ab-1b0a-4067-8b22-24285371c3a4/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160] [2021-10-13 07:37:46,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:37:46,359 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:37:46,431 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_585c42ab-1b0a-4067-8b22-24285371c3a4/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160] [2021-10-13 07:37:46,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:37:46,459 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:37:46,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46 WrapperNode [2021-10-13 07:37:46,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:37:46,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:37:46,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:37:46,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:37:46,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:37:46,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:37:46,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:37:46,527 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:37:46,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,551 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,552 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:37:46,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:37:46,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:37:46,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:37:46,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (1/1) ... [2021-10-13 07:37:46,636 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:37:46,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:37:46,662 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:37:46,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:37:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:37:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:37:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 07:37:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:37:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 07:37:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:37:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:37:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:37:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-13 07:37:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:37:47,871 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:37:47,872 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-10-13 07:37:47,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:37:47 BoogieIcfgContainer [2021-10-13 07:37:47,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:37:47,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:37:47,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:37:47,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:37:47,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:37:46" (1/3) ... [2021-10-13 07:37:47,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d107c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:37:47, skipping insertion in model container [2021-10-13 07:37:47,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:46" (2/3) ... [2021-10-13 07:37:47,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d107c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:37:47, skipping insertion in model container [2021-10-13 07:37:47,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:37:47" (3/3) ... [2021-10-13 07:37:47,887 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2021-10-13 07:37:47,898 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:37:47,899 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:37:47,946 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:37:47,951 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 [2021-10-13 07:37:47,952 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:37:47,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 93 states have (on average 1.7419354838709677) internal successors, (162), 94 states have internal predecessors, (162), 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) [2021-10-13 07:37:47,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 07:37:47,974 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:37:47,975 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:37:47,976 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:37:47,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:37:47,982 INFO L82 PathProgramCache]: Analyzing trace with hash -269434597, now seen corresponding path program 1 times [2021-10-13 07:37:47,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:37:47,990 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208722200] [2021-10-13 07:37:47,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:37:47,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:37:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:37:48,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:37:48,198 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:37:48,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208722200] [2021-10-13 07:37:48,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208722200] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:37:48,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:37:48,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 07:37:48,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985905171] [2021-10-13 07:37:48,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:37:48,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:37:48,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:37:48,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:37:48,226 INFO L87 Difference]: Start difference. First operand has 95 states, 93 states have (on average 1.7419354838709677) internal successors, (162), 94 states have internal predecessors, (162), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-10-13 07:37:48,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:37:48,269 INFO L93 Difference]: Finished difference Result 189 states and 323 transitions. [2021-10-13 07:37:48,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:37:48,270 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 14 [2021-10-13 07:37:48,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:37:48,284 INFO L225 Difference]: With dead ends: 189 [2021-10-13 07:37:48,284 INFO L226 Difference]: Without dead ends: 92 [2021-10-13 07:37:48,287 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 [2021-10-13 07:37:48,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-13 07:37:48,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-10-13 07:37:48,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.3516483516483517) internal successors, (123), 91 states have internal predecessors, (123), 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) [2021-10-13 07:37:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 123 transitions. [2021-10-13 07:37:48,344 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 123 transitions. Word has length 14 [2021-10-13 07:37:48,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:37:48,344 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 123 transitions. [2021-10-13 07:37:48,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2021-10-13 07:37:48,345 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 123 transitions. [2021-10-13 07:37:48,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:37:48,346 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:37:48,346 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:37:48,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:37:48,347 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:37:48,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:37:48,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1339188209, now seen corresponding path program 1 times [2021-10-13 07:37:48,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:37:48,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184224286] [2021-10-13 07:37:48,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:37:48,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:37:48,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:37:48,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:37:48,503 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:37:48,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184224286] [2021-10-13 07:37:48,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184224286] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:37:48,504 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:37:48,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:37:48,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768350906] [2021-10-13 07:37:48,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:37:48,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:37:48,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:37:48,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:37:48,531 INFO L87 Difference]: Start difference. First operand 92 states and 123 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-10-13 07:37:48,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:37:48,574 INFO L93 Difference]: Finished difference Result 176 states and 237 transitions. [2021-10-13 07:37:48,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:37:48,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2021-10-13 07:37:48,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:37:48,576 INFO L225 Difference]: With dead ends: 176 [2021-10-13 07:37:48,576 INFO L226 Difference]: Without dead ends: 92 [2021-10-13 07:37:48,578 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:37:48,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-10-13 07:37:48,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-10-13 07:37:48,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.3406593406593406) internal successors, (122), 91 states have internal predecessors, (122), 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) [2021-10-13 07:37:48,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 122 transitions. [2021-10-13 07:37:48,593 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 122 transitions. Word has length 17 [2021-10-13 07:37:48,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:37:48,593 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 122 transitions. [2021-10-13 07:37:48,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2021-10-13 07:37:48,595 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 122 transitions. [2021-10-13 07:37:48,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 07:37:48,597 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:37:48,599 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:37:48,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:37:48,600 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:37:48,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:37:48,602 INFO L82 PathProgramCache]: Analyzing trace with hash 842389641, now seen corresponding path program 1 times [2021-10-13 07:37:48,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:37:48,603 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350709514] [2021-10-13 07:37:48,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:37:48,604 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:37:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:37:48,801 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:37:48,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:37:48,943 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:37:48,943 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:37:48,944 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:37:48,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 07:37:48,953 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:37:49,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:37:49 BoogieIcfgContainer [2021-10-13 07:37:49,034 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:37:49,035 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:37:49,035 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:37:49,035 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:37:49,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:37:47" (3/4) ... [2021-10-13 07:37:49,039 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:37:49,039 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:37:49,043 INFO L168 Benchmark]: Toolchain (without parser) took 3015.63 ms. Allocated memory is still 127.9 MB. Free memory was 94.1 MB in the beginning and 60.3 MB in the end (delta: 33.9 MB). Peak memory consumption was 33.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:37:49,044 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory was 58.8 MB in the beginning and 58.7 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:37:49,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 422.96 ms. Allocated memory is still 127.9 MB. Free memory was 94.1 MB in the beginning and 97.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:37:49,050 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.31 ms. Allocated memory is still 127.9 MB. Free memory was 97.9 MB in the beginning and 94.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:37:49,051 INFO L168 Benchmark]: Boogie Preprocessor took 81.86 ms. Allocated memory is still 127.9 MB. Free memory was 94.2 MB in the beginning and 90.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:37:49,051 INFO L168 Benchmark]: RCFGBuilder took 1265.87 ms. Allocated memory is still 127.9 MB. Free memory was 90.9 MB in the beginning and 84.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:37:49,053 INFO L168 Benchmark]: TraceAbstraction took 1156.09 ms. Allocated memory is still 127.9 MB. Free memory was 83.4 MB in the beginning and 60.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:37:49,053 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 127.9 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:37:49,064 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory was 58.8 MB in the beginning and 58.7 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 422.96 ms. Allocated memory is still 127.9 MB. Free memory was 94.1 MB in the beginning and 97.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.31 ms. Allocated memory is still 127.9 MB. Free memory was 97.9 MB in the beginning and 94.2 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 81.86 ms. Allocated memory is still 127.9 MB. Free memory was 94.2 MB in the beginning and 90.9 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1265.87 ms. Allocated memory is still 127.9 MB. Free memory was 90.9 MB in the beginning and 84.0 MB in the end (delta: 6.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1156.09 ms. Allocated memory is still 127.9 MB. Free memory was 83.4 MB in the beginning and 60.3 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. * Witness Printer took 4.50 ms. Allocated memory is still 127.9 MB. Free memory is still 60.3 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: 300]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 299. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L291] double x = 1.0 / 0.0; [L292] double y = __VERIFIER_nondet_double(); [L248] __int32_t hx, lx; VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L250] ieee_double_shape_type ew_u; [L251] ew_u.value = (x) [L252] EXPR ew_u.parts.msw [L252] (hx) = ew_u.parts.msw [L253] EXPR ew_u.parts.lsw [L253] (lx) = ew_u.parts.lsw [L255] hx &= 0x7fffffff [L256] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L257] hx = 0x7ff00000 - hx [L258] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L294] EXPR isinf_double(x) && isfinite_double(y) [L262] __int32_t hx; VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L264] ieee_double_shape_type gh_u; [L265] gh_u.value = (x) [L266] EXPR gh_u.parts.msw [L266] (hx) = gh_u.parts.msw [L268] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); [L294] EXPR isinf_double(x) && isfinite_double(y) VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L294] COND TRUE isinf_double(x) && isfinite_double(y) && y < 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L296] double res = __ieee754_atan2(y, x); [L299] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L299] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L300] reach_error() VAL [aT_atan={5:0}, atanhi_atan={11:0}, atanlo_atan={9:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1006.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 12.6ms, AutomataDifference: 130.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 250 SDtfs, 0 SDslu, 117 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=95occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 56.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.2ms SsaConstructionTime, 320.5ms SatisfiabilityAnalysisTime, 143.7ms InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 07:37:49,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/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-4e77c04 [2021-10-13 07:37:51,672 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:37:51,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:37:51,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:37:51,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:37:51,748 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:37:51,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:37:51,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:37:51,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:37:51,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:37:51,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:37:51,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:37:51,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:37:51,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:37:51,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:37:51,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:37:51,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:37:51,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:37:51,784 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:37:51,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:37:51,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:37:51,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:37:51,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:37:51,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:37:51,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:37:51,810 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:37:51,810 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:37:51,812 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:37:51,813 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:37:51,814 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:37:51,814 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:37:51,815 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:37:51,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:37:51,818 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:37:51,820 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:37:51,820 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:37:51,821 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:37:51,821 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:37:51,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:37:51,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:37:51,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:37:51,825 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:37:51,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:37:51,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:37:51,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:37:51,869 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:37:51,869 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:37:51,869 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:37:51,869 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:37:51,869 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:37:51,870 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:37:51,871 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:37:51,872 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:37:51,872 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:37:51,872 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:37:51,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:37:51,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:37:51,873 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:37:51,873 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:37:51,873 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:37:51,874 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:37:51,874 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:37:51,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:37:51,874 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:37:51,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:37:51,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:37:51,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:37:51,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:37:51,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:37:51,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:37:51,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:37:51,876 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:37:51,876 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:37:51,876 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:37:51,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:37:51,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:37:51,877 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:37:51,877 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_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bd2bcdd5da19c972288d5e8273d9a80de67d6f2 [2021-10-13 07:37:52,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:37:52,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:37:52,283 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:37:52,285 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:37:52,286 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:37:52,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-10-13 07:37:52,364 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data/77a871602/363957244d694047bd96a576bb36f89b/FLAGc3c7e4efe [2021-10-13 07:37:52,948 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:37:52,948 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c [2021-10-13 07:37:52,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data/77a871602/363957244d694047bd96a576bb36f89b/FLAGc3c7e4efe [2021-10-13 07:37:53,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/data/77a871602/363957244d694047bd96a576bb36f89b [2021-10-13 07:37:53,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:37:53,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:37:53,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:37:53,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:37:53,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:37:53,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29e3a3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53, skipping insertion in model container [2021-10-13 07:37:53,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,243 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:37:53,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:37:53,560 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_585c42ab-1b0a-4067-8b22-24285371c3a4/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160] [2021-10-13 07:37:53,578 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:37:53,599 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:37:53,735 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_585c42ab-1b0a-4067-8b22-24285371c3a4/sv-benchmarks/c/float-newlib/double_req_bl_0683a.c[7147,7160] [2021-10-13 07:37:53,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:37:53,765 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:37:53,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53 WrapperNode [2021-10-13 07:37:53,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:37:53,767 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:37:53,767 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:37:53,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:37:53,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:37:53,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:37:53,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:37:53,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:37:53,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,970 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,974 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:37:53,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:37:53,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:37:53,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:37:53,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (1/1) ... [2021-10-13 07:37:53,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:37:54,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:37:54,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:37:54,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:37:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-13 07:37:54,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-13 07:37:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:37:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:37:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-13 07:37:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:37:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:37:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:37:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 07:37:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:38:34,146 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:38:34,147 INFO L299 CfgBuilder]: Removed 56 assume(true) statements. [2021-10-13 07:38:34,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:38:34 BoogieIcfgContainer [2021-10-13 07:38:34,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:38:34,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:38:34,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:38:34,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:38:34,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:37:53" (1/3) ... [2021-10-13 07:38:34,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599e5459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:38:34, skipping insertion in model container [2021-10-13 07:38:34,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:37:53" (2/3) ... [2021-10-13 07:38:34,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599e5459 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:38:34, skipping insertion in model container [2021-10-13 07:38:34,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:38:34" (3/3) ... [2021-10-13 07:38:34,160 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0683a.c [2021-10-13 07:38:34,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:38:34,167 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:38:34,214 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:38:34,221 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 [2021-10-13 07:38:34,221 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:38:34,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 129 states, 127 states have (on average 1.6929133858267718) internal successors, (215), 128 states have internal predecessors, (215), 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) [2021-10-13 07:38:34,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 07:38:34,246 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:38:34,247 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:38:34,248 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:38:34,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:38:34,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1964703289, now seen corresponding path program 1 times [2021-10-13 07:38:34,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:38:34,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829428213] [2021-10-13 07:38:34,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:38:34,269 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:38:34,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:38:34,277 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:38:34,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:38:34,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:38:34,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:38:34,609 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 [2021-10-13 07:38:34,617 INFO L168 Benchmark]: Toolchain (without parser) took 41392.55 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 55.1 MB in the beginning and 69.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:34,618 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 73.4 MB. Free memory is still 54.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:38:34,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.98 ms. Allocated memory is still 73.4 MB. Free memory was 54.9 MB in the beginning and 38.5 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:34,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.88 ms. Allocated memory is still 73.4 MB. Free memory was 38.3 MB in the beginning and 53.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:34,621 INFO L168 Benchmark]: Boogie Preprocessor took 83.59 ms. Allocated memory is still 73.4 MB. Free memory was 53.5 MB in the beginning and 50.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:34,623 INFO L168 Benchmark]: RCFGBuilder took 40166.63 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 50.0 MB in the beginning and 53.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:38:34,629 INFO L168 Benchmark]: TraceAbstraction took 462.91 ms. Allocated memory is still 94.4 MB. Free memory was 52.8 MB in the beginning and 69.5 MB in the end (delta: -16.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:38:34,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 73.4 MB. Free memory is still 54.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 539.98 ms. Allocated memory is still 73.4 MB. Free memory was 54.9 MB in the beginning and 38.5 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.88 ms. Allocated memory is still 73.4 MB. Free memory was 38.3 MB in the beginning and 53.5 MB in the end (delta: -15.3 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.59 ms. Allocated memory is still 73.4 MB. Free memory was 53.5 MB in the beginning and 50.0 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 40166.63 ms. Allocated memory was 73.4 MB in the beginning and 94.4 MB in the end (delta: 21.0 MB). Free memory was 50.0 MB in the beginning and 53.2 MB in the end (delta: -3.2 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 462.91 ms. Allocated memory is still 94.4 MB. Free memory was 52.8 MB in the beginning and 69.5 MB in the end (delta: -16.7 MB). There was no memory consumed. 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. [2021-10-13 07:38:34,868 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-13 07:38:34,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_585c42ab-1b0a-4067-8b22-24285371c3a4/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...