./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.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_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/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_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/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_9b43d58b-1ced-495b-83d0-be3d608594bc/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 572360d878facce0c5d840a57f70fa0d65d827a5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/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_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/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_9b43d58b-1ced-495b-83d0-be3d608594bc/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 572360d878facce0c5d840a57f70fa0d65d827a5 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:19:24,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:19:24,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:19:24,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:19:24,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:19:24,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:19:24,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:19:24,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:19:24,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:19:24,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:19:24,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:19:24,313 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:19:24,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:19:24,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:19:24,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:19:24,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:19:24,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:19:24,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:19:24,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:19:24,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:19:24,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:19:24,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:19:24,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:19:24,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:19:24,353 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:19:24,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:19:24,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:19:24,356 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:19:24,356 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:19:24,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:19:24,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:19:24,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:19:24,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:19:24,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:19:24,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:19:24,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:19:24,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:19:24,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:19:24,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:19:24,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:19:24,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:19:24,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:19:24,415 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:19:24,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:19:24,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:19:24,417 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:19:24,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:19:24,417 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:19:24,417 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:19:24,417 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:19:24,424 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:19:24,424 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:19:24,425 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:19:24,425 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:19:24,425 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:19:24,426 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:19:24,426 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:19:24,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:19:24,427 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:19:24,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:19:24,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:19:24,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:19:24,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:19:24,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:19:24,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:19:24,428 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:19:24,428 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:19:24,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:19:24,428 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:19:24,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:19:24,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:19:24,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:19:24,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:19:24,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:19:24,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:19:24,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:19:24,430 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:19:24,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:19:24,431 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:19:24,431 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:19:24,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:19:24,431 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_9b43d58b-1ced-495b-83d0-be3d608594bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572360d878facce0c5d840a57f70fa0d65d827a5 [2021-10-13 07:19:24,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:19:24,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:19:24,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:19:24,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:19:24,755 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:19:24,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-13 07:19:24,828 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data/0136c57ad/4658a65a72c34b98b12c72734973786b/FLAGf2c7ef736 [2021-10-13 07:19:25,402 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:19:25,403 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-13 07:19:25,415 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data/0136c57ad/4658a65a72c34b98b12c72734973786b/FLAGf2c7ef736 [2021-10-13 07:19:25,747 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data/0136c57ad/4658a65a72c34b98b12c72734973786b [2021-10-13 07:19:25,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:19:25,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:19:25,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:19:25,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:19:25,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:19:25,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:19:25" (1/1) ... [2021-10-13 07:19:25,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58bddd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:25, skipping insertion in model container [2021-10-13 07:19:25,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:19:25" (1/1) ... [2021-10-13 07:19:25,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:19:25,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:19:26,000 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_9b43d58b-1ced-495b-83d0-be3d608594bc/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-13 07:19:26,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:19:26,022 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:19:26,034 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_9b43d58b-1ced-495b-83d0-be3d608594bc/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-13 07:19:26,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:19:26,071 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:19:26,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26 WrapperNode [2021-10-13 07:19:26,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:19:26,074 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:19:26,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:19:26,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:19:26,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:19:26,115 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:19:26,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:19:26,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:19:26,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:19:26,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:19:26,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:19:26,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:19:26,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (1/1) ... [2021-10-13 07:19:26,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:19:26,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:19:26,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:19:26,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:19:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:19:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:19:26,251 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:19:26,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:19:26,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:19:26,611 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-13 07:19:26,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:26 BoogieIcfgContainer [2021-10-13 07:19:26,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:19:26,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:19:26,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:19:26,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:19:26,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:19:25" (1/3) ... [2021-10-13 07:19:26,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194299e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:19:26, skipping insertion in model container [2021-10-13 07:19:26,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:26" (2/3) ... [2021-10-13 07:19:26,620 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194299e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:19:26, skipping insertion in model container [2021-10-13 07:19:26,620 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:26" (3/3) ... [2021-10-13 07:19:26,622 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound5.c [2021-10-13 07:19:26,627 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:19:26,627 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 07:19:26,685 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:19:26,704 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 07:19:26,705 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 07:19:26,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:19:26,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 07:19:26,728 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:26,728 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 07:19:26,729 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:19:26,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:26,741 INFO L82 PathProgramCache]: Analyzing trace with hash 3950384, now seen corresponding path program 1 times [2021-10-13 07:19:26,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:19:26,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543709340] [2021-10-13 07:19:26,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:26,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:19:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:26,989 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 07:19:26,990 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:19:26,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543709340] [2021-10-13 07:19:26,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543709340] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:26,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:26,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:19:26,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784171307] [2021-10-13 07:19:26,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 07:19:26,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:19:27,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 07:19:27,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 07:19:27,015 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 07:19:27,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:27,108 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions. [2021-10-13 07:19:27,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 07:19:27,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2021-10-13 07:19:27,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:27,118 INFO L225 Difference]: With dead ends: 78 [2021-10-13 07:19:27,118 INFO L226 Difference]: Without dead ends: 47 [2021-10-13 07:19:27,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:19:27,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-13 07:19:27,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2021-10-13 07:19:27,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 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 07:19:27,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2021-10-13 07:19:27,156 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 4 [2021-10-13 07:19:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:27,157 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-13 07:19:27,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 07:19:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2021-10-13 07:19:27,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 07:19:27,158 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:27,158 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 07:19:27,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:19:27,159 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:19:27,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:27,169 INFO L82 PathProgramCache]: Analyzing trace with hash -498492525, now seen corresponding path program 1 times [2021-10-13 07:19:27,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:19:27,170 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004931427] [2021-10-13 07:19:27,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:27,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:19:27,184 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 07:19:27,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [778586175] [2021-10-13 07:19:27,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:27,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:19:27,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:19:27,187 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:19:27,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 07:19:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:27,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:19:27,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:27,396 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 07:19:27,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:27,472 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 07:19:27,472 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:19:27,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004931427] [2021-10-13 07:19:27,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:19:27,473 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [778586175] [2021-10-13 07:19:27,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [778586175] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:27,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:27,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:19:27,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941877713] [2021-10-13 07:19:27,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:19:27,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:19:27,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:19:27,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:19:27,476 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 07:19:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:27,592 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-13 07:19:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 07:19:27,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 6 [2021-10-13 07:19:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:27,595 INFO L225 Difference]: With dead ends: 47 [2021-10-13 07:19:27,596 INFO L226 Difference]: Without dead ends: 43 [2021-10-13 07:19:27,596 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:19:27,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-13 07:19:27,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2021-10-13 07:19:27,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 states have internal predecessors, (39), 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 07:19:27,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-10-13 07:19:27,604 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 6 [2021-10-13 07:19:27,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:27,604 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-10-13 07:19:27,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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 07:19:27,605 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-10-13 07:19:27,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 07:19:27,605 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:27,605 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:27,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:27,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:19:27,834 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:19:27,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:27,835 INFO L82 PathProgramCache]: Analyzing trace with hash 1985176726, now seen corresponding path program 1 times [2021-10-13 07:19:27,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:19:27,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420950280] [2021-10-13 07:19:27,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:27,836 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:19:27,861 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 07:19:27,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [756023518] [2021-10-13 07:19:27,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:27,862 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:19:27,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:19:27,864 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:19:27,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 07:19:27,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:27,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 07:19:27,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:27,984 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 07:19:27,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:28,102 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 07:19:28,102 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:19:28,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420950280] [2021-10-13 07:19:28,103 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:19:28,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756023518] [2021-10-13 07:19:28,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756023518] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:28,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:28,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 07:19:28,104 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832058712] [2021-10-13 07:19:28,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 07:19:28,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:19:28,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 07:19:28,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 07:19:28,106 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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 07:19:28,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:28,321 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2021-10-13 07:19:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:19:28,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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 8 [2021-10-13 07:19:28,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:28,322 INFO L225 Difference]: With dead ends: 39 [2021-10-13 07:19:28,322 INFO L226 Difference]: Without dead ends: 27 [2021-10-13 07:19:28,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 65.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 07:19:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-13 07:19:28,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-13 07:19:28,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.173913043478261) internal successors, (27), 26 states have internal predecessors, (27), 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 07:19:28,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-10-13 07:19:28,328 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 8 [2021-10-13 07:19:28,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:28,329 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-10-13 07:19:28,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 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 07:19:28,329 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-10-13 07:19:28,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:19:28,330 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:28,330 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:28,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:28,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:19:28,542 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:19:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:28,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1294888167, now seen corresponding path program 1 times [2021-10-13 07:19:28,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:19:28,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283798139] [2021-10-13 07:19:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:28,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:19:28,558 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 07:19:28,558 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [931338342] [2021-10-13 07:19:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:28,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:19:28,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:19:28,560 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:19:28,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 07:19:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:28,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 07:19:28,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:28,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:28,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:28,849 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 07:19:28,849 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:19:28,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283798139] [2021-10-13 07:19:28,850 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 07:19:28,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931338342] [2021-10-13 07:19:28,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931338342] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:19:28,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [816768317] [2021-10-13 07:19:28,882 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-13 07:19:28,882 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 07:19:28,887 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 07:19:28,892 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 07:19:28,893 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 07:19:28,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:28,935 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:19:28,936 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:28,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 07:19:28,939 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 07:19:28,940 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:28,942 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 07:19:28,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-13 07:19:28,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:19:28,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:19:28,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:28,981 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:19:28,981 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:28,982 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:19:28,982 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 07:19:28,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:19:28,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 07:19:28,988 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:28,989 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:19:28,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:28,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 07:19:28,990 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-13 07:19:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:19:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:19:29,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 07:19:29,064 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-13 07:19:29,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 07:19:29,066 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:29,070 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:19:29,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:29,072 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 07:19:29,073 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-13 07:19:29,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:19:29,143 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 07:19:29,146 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.0 percent of original size [2021-10-13 07:19:29,149 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-13 07:19:29,150 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 07:19:29,150 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:444, output treesize:125 [2021-10-13 07:19:29,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:29,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:19:29,378 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_17| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) 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.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) 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) [2021-10-13 07:19:29,382 INFO L168 Benchmark]: Toolchain (without parser) took 3630.54 ms. Allocated memory is still 123.7 MB. Free memory was 92.4 MB in the beginning and 79.6 MB in the end (delta: 12.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:19:29,382 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:19:29,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.80 ms. Allocated memory is still 123.7 MB. Free memory was 92.4 MB in the beginning and 101.0 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:19:29,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.39 ms. Allocated memory is still 123.7 MB. Free memory was 101.0 MB in the beginning and 99.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:19:29,384 INFO L168 Benchmark]: Boogie Preprocessor took 41.32 ms. Allocated memory is still 123.7 MB. Free memory was 99.3 MB in the beginning and 98.5 MB in the end (delta: 792.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:19:29,384 INFO L168 Benchmark]: RCFGBuilder took 456.55 ms. Allocated memory is still 123.7 MB. Free memory was 98.5 MB in the beginning and 85.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 07:19:29,385 INFO L168 Benchmark]: TraceAbstraction took 2765.40 ms. Allocated memory is still 123.7 MB. Free memory was 85.1 MB in the beginning and 79.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:19:29,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 86.0 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.80 ms. Allocated memory is still 123.7 MB. Free memory was 92.4 MB in the beginning and 101.0 MB in the end (delta: -8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.39 ms. Allocated memory is still 123.7 MB. Free memory was 101.0 MB in the beginning and 99.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.32 ms. Allocated memory is still 123.7 MB. Free memory was 99.3 MB in the beginning and 98.5 MB in the end (delta: 792.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 456.55 ms. Allocated memory is still 123.7 MB. Free memory was 98.5 MB in the beginning and 85.5 MB in the end (delta: 13.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2765.40 ms. Allocated memory is still 123.7 MB. Free memory was 85.1 MB in the beginning and 79.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_17| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_17|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:19:29,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/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 07:19:31,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:19:31,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:19:31,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:19:31,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:19:31,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:19:31,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:19:31,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:19:31,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:19:31,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:19:31,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:19:31,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:19:31,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:19:31,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:19:31,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:19:31,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:19:31,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:19:31,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:19:31,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:19:31,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:19:31,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:19:31,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:19:31,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:19:31,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:19:31,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:19:31,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:19:31,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:19:31,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:19:31,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:19:31,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:19:31,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:19:31,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:19:31,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:19:31,894 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:19:31,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:19:31,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:19:31,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:19:31,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:19:31,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:19:31,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:19:31,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:19:31,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:19:31,949 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:19:31,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:19:31,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:19:31,951 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:19:31,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:19:31,952 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:19:31,952 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:19:31,952 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:19:31,952 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:19:31,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:19:31,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:19:31,954 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:19:31,954 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:19:31,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:19:31,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:19:31,955 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:19:31,955 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:19:31,956 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:19:31,956 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:19:31,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:19:31,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:19:31,957 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:19:31,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:19:31,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:19:31,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:19:31,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:19:31,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:19:31,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:19:31,959 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:19:31,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:19:31,960 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:19:31,960 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:19:31,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:19:31,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:19:31,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:19:31,961 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_9b43d58b-1ced-495b-83d0-be3d608594bc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572360d878facce0c5d840a57f70fa0d65d827a5 [2021-10-13 07:19:32,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:19:32,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:19:32,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:19:32,336 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:19:32,337 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:19:32,338 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-13 07:19:32,410 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data/71a693a1e/95635be868774c6f806fb001ccdf17bc/FLAGe2a657787 [2021-10-13 07:19:32,966 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:19:32,966 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-13 07:19:32,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data/71a693a1e/95635be868774c6f806fb001ccdf17bc/FLAGe2a657787 [2021-10-13 07:19:33,340 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/data/71a693a1e/95635be868774c6f806fb001ccdf17bc [2021-10-13 07:19:33,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:19:33,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:19:33,349 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:19:33,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:19:33,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:19:33,354 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b2d8144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33, skipping insertion in model container [2021-10-13 07:19:33,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:19:33,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:19:33,567 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_9b43d58b-1ced-495b-83d0-be3d608594bc/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-13 07:19:33,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:19:33,616 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:19:33,633 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_9b43d58b-1ced-495b-83d0-be3d608594bc/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-13 07:19:33,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:19:33,698 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:19:33,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33 WrapperNode [2021-10-13 07:19:33,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:19:33,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:19:33,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:19:33,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:19:33,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,750 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:19:33,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:19:33,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:19:33,751 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:19:33,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,775 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,777 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:19:33,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:19:33,778 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:19:33,778 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:19:33,779 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (1/1) ... [2021-10-13 07:19:33,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:19:33,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:19:33,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:19:33,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:19:33,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:19:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:19:33,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:19:33,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:19:34,513 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:19:34,513 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-13 07:19:34,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:34 BoogieIcfgContainer [2021-10-13 07:19:34,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:19:34,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:19:34,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:19:34,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:19:34,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:19:33" (1/3) ... [2021-10-13 07:19:34,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303efbaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:19:34, skipping insertion in model container [2021-10-13 07:19:34,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:19:33" (2/3) ... [2021-10-13 07:19:34,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303efbaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:19:34, skipping insertion in model container [2021-10-13 07:19:34,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:19:34" (3/3) ... [2021-10-13 07:19:34,523 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound5.c [2021-10-13 07:19:34,529 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:19:34,529 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 07:19:34,576 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:19:34,582 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 07:19:34,583 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 07:19:34,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 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 07:19:34,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:19:34,600 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:34,600 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:34,601 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:19:34,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:34,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-13 07:19:34,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:34,616 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22511662] [2021-10-13 07:19:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:34,617 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:34,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:34,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:34,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:19:34,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:34,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:19:34,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:34,753 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 07:19:34,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:34,792 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 07:19:34,793 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:34,793 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22511662] [2021-10-13 07:19:34,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22511662] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:34,794 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:34,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:19:34,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170354151] [2021-10-13 07:19:34,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:19:34,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:34,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:19:34,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:19:34,817 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:19:34,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:34,834 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-13 07:19:34,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:19:34,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 07:19:34,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:34,843 INFO L225 Difference]: With dead ends: 63 [2021-10-13 07:19:34,843 INFO L226 Difference]: Without dead ends: 29 [2021-10-13 07:19:34,846 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 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 07:19:34,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-13 07:19:34,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-13 07:19:34,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 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 07:19:34,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-13 07:19:34,876 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-13 07:19:34,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:34,877 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-13 07:19:34,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:19:34,877 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-13 07:19:34,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 07:19:34,878 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:34,878 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:34,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:35,093 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:19:35,093 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:19:35,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:35,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-13 07:19:35,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:35,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454087613] [2021-10-13 07:19:35,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:35,095 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:35,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:35,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:35,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:19:35,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:35,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:19:35,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:35,361 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 07:19:35,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:35,458 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 07:19:35,458 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:35,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454087613] [2021-10-13 07:19:35,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454087613] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:35,460 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:35,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:19:35,461 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988948453] [2021-10-13 07:19:35,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:19:35,462 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:35,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:19:35,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:19:35,466 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 07:19:36,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:36,132 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2021-10-13 07:19:36,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:19:36,140 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 07:19:36,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:36,141 INFO L225 Difference]: With dead ends: 50 [2021-10-13 07:19:36,141 INFO L226 Difference]: Without dead ends: 46 [2021-10-13 07:19:36,142 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 137.4ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:19:36,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-13 07:19:36,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 25. [2021-10-13 07:19:36,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 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 07:19:36,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-10-13 07:19:36,150 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 7 [2021-10-13 07:19:36,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:36,150 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-10-13 07:19:36,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 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 07:19:36,151 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-10-13 07:19:36,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:19:36,151 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:36,152 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:36,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:36,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:19:36,363 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:19:36,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:36,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-13 07:19:36,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:36,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74770953] [2021-10-13 07:19:36,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:36,365 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:36,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:36,379 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:36,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:19:36,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:36,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:19:36,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:36,577 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 07:19:36,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:37,838 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 07:19:37,839 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:37,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74770953] [2021-10-13 07:19:37,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74770953] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:37,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:37,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:19:37,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151212477] [2021-10-13 07:19:37,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:19:37,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:37,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:19:37,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:19:37,842 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 07:19:39,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:39,229 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2021-10-13 07:19:39,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:19:39,245 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 9 [2021-10-13 07:19:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:39,246 INFO L225 Difference]: With dead ends: 46 [2021-10-13 07:19:39,246 INFO L226 Difference]: Without dead ends: 42 [2021-10-13 07:19:39,247 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 738.9ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 07:19:39,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-13 07:19:39,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2021-10-13 07:19:39,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.1875) internal successors, (38), 35 states have internal predecessors, (38), 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 07:19:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2021-10-13 07:19:39,258 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 9 [2021-10-13 07:19:39,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:39,258 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-10-13 07:19:39,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 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 07:19:39,259 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2021-10-13 07:19:39,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:19:39,259 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:39,260 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:39,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:19:39,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:19:39,489 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:19:39,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:39,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-13 07:19:39,490 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:39,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [699475459] [2021-10-13 07:19:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:39,491 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:39,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:39,492 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:39,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:19:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:39,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 07:19:39,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:39,804 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 07:19:39,805 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:41,437 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 07:19:41,437 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:41,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [699475459] [2021-10-13 07:19:41,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [699475459] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:19:41,438 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:19:41,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 07:19:41,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517019091] [2021-10-13 07:19:41,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 07:19:41,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:41,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 07:19:41,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 07:19:41,439 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 07:19:48,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:19:48,556 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2021-10-13 07:19:48,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 07:19:48,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 11 [2021-10-13 07:19:48,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:19:48,558 INFO L225 Difference]: With dead ends: 60 [2021-10-13 07:19:48,558 INFO L226 Difference]: Without dead ends: 48 [2021-10-13 07:19:48,559 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2284.1ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:19:48,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-13 07:19:48,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2021-10-13 07:19:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 42 states have internal predecessors, (45), 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 07:19:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-10-13 07:19:48,569 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 11 [2021-10-13 07:19:48,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:19:48,570 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-10-13 07:19:48,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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 07:19:48,570 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-10-13 07:19:48,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 07:19:48,571 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:19:48,571 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:19:48,586 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-10-13 07:19:48,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:19:48,782 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:19:48,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:19:48,782 INFO L82 PathProgramCache]: Analyzing trace with hash -583489763, now seen corresponding path program 1 times [2021-10-13 07:19:48,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:19:48,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351688809] [2021-10-13 07:19:48,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:48,783 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:19:48,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:19:48,784 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:19:48,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 07:19:48,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:48,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:19:48,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:49,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:49,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:52,478 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:52,478 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:19:52,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351688809] [2021-10-13 07:19:52,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351688809] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:19:52,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1268784985] [2021-10-13 07:19:52,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:52,479 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:19:52,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:19:52,492 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:19:52,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-13 07:19:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:52,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:19:52,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:53,009 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:53,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:54,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1268784985] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:19:54,680 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884391019] [2021-10-13 07:19:54,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:19:54,680 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:19:54,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:19:54,692 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:19:54,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 07:19:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:19:54,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 07:19:54,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:19:55,381 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:55,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:19:56,988 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:19:56,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884391019] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:19:56,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:19:56,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 5] total 9 [2021-10-13 07:19:56,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459170136] [2021-10-13 07:19:56,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 07:19:56,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:19:56,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 07:19:56,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-13 07:19:56,991 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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 07:20:26,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:20:26,407 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2021-10-13 07:20:26,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 07:20:26,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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 16 [2021-10-13 07:20:26,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:20:26,425 INFO L225 Difference]: With dead ends: 81 [2021-10-13 07:20:26,425 INFO L226 Difference]: Without dead ends: 73 [2021-10-13 07:20:26,426 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 8387.2ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-10-13 07:20:26,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-13 07:20:26,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 57. [2021-10-13 07:20:26,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.150943396226415) internal successors, (61), 56 states have internal predecessors, (61), 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 07:20:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-10-13 07:20:26,441 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 16 [2021-10-13 07:20:26,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:20:26,442 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-10-13 07:20:26,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 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 07:20:26,442 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-10-13 07:20:26,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 07:20:26,443 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:20:26,443 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 07:20:26,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 07:20:26,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2021-10-13 07:20:26,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-13 07:20:27,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:20:27,063 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:20:27,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:20:27,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1115495499, now seen corresponding path program 1 times [2021-10-13 07:20:27,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:20:27,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1057239032] [2021-10-13 07:20:27,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:27,064 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:20:27,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:20:27,065 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:20:27,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 07:20:27,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:27,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:20:27,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:27,748 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:20:27,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:20:34,498 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-13 07:20:34,498 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:20:34,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1057239032] [2021-10-13 07:20:34,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1057239032] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:20:34,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1622416901] [2021-10-13 07:20:34,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:34,499 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:20:34,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:20:34,500 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:20:34,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-13 07:20:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:35,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:20:35,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:35,373 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:20:35,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:20:41,150 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-13 07:20:41,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1622416901] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:20:41,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117276974] [2021-10-13 07:20:41,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:20:41,151 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:20:41,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:20:41,151 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:20:41,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 07:20:41,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:20:41,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-13 07:20:41,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:20:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:20:42,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:21:22,466 WARN L207 SmtUtils]: Spent 5.98 s on a formula simplification that was a NOOP. DAG size: 59 [2021-10-13 07:21:55,713 WARN L207 SmtUtils]: Spent 6.00 s on a formula simplification that was a NOOP. DAG size: 61 [2021-10-13 07:22:10,634 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse5 (bvmul .cse2 .cse2)) (.cse3 ((_ sign_extend 32) (_ bv4 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32))) (.cse0 ((_ sign_extend 32) (_ bv0 32)))) (or (= (bvadd .cse0 (bvmul c_ULTIMATE.start_main_~s~0 .cse1) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse2)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse2 .cse2)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0))) (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvneg (bvmul .cse3 (let ((.cse4 (bvadd .cse2 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (bvmul .cse2 .cse4) (_ bv2 64)) (bvmul .cse4 .cse4) .cse5)))) (bvmul (_ bv4 64) (bvmul .cse2 .cse2 .cse1)) (bvmul (_ bv32 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse2 .cse2 .cse2)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse2)) .cse2 (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse2 .cse1)) (bvmul (_ bv16 64) (bvmul .cse2 .cse2 .cse2 .cse2)) (bvmul (_ bv24 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse2 .cse2)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0))) (not (= (bvadd (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse2)) (bvmul (_ bv4 64) .cse5) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse1))) (not (= (bvadd .cse2 (bvneg (bvmul .cse3 c_ULTIMATE.start_main_~s~0)) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~t~0) (bvmul c_ULTIMATE.start_main_~t~0 .cse1)) .cse0))))) is different from true [2021-10-13 07:23:08,335 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ sign_extend 32) (_ bv2 32))) (.cse0 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse4 (bvmul .cse0 .cse0)) (.cse7 ((_ sign_extend 32) (_ bv0 32))) (.cse6 (bvmul c_ULTIMATE.start_main_~t~0 .cse1)) (.cse5 (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~t~0)) (.cse2 ((_ sign_extend 32) (_ bv4 32)))) (or (= (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvmul (_ bv54 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0 .cse0)) (bvmul c_ULTIMATE.start_main_~s~0 .cse1) (bvneg (bvmul .cse2 (let ((.cse3 (bvadd (bvmul .cse0 (_ bv2 64)) c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul .cse3 .cse3) (bvmul (bvmul .cse0 .cse3) (_ bv2 64)) .cse4)))) (bvmul (_ bv12 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0)) .cse0 (bvmul (_ bv108 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse0 .cse0)) (bvmul (_ bv81 64) (bvmul .cse0 .cse0 .cse0 .cse0)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0)) .cse5 (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0) .cse6) (bvadd (bvmul (_ bv12 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse0)) .cse7 (bvmul (_ bv18 64) (bvmul c_ULTIMATE.start_main_~t~0 .cse0 .cse0)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv6 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse1)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0)) (bvmul (_ bv9 64) (bvmul .cse0 .cse0 .cse1)) (bvmul (_ bv18 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse0 .cse0)) (bvmul (_ bv12 64) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~a~0 .cse0)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1))) (not (= (bvadd (bvmul (_ bv6 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0)) (bvmul (_ bv9 64) .cse4) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd (bvmul (_ bv2 64) c_ULTIMATE.start_main_~t~0) c_ULTIMATE.start_main_~s~0 (bvmul (_ bv3 64) .cse1)))) (not (= .cse7 (bvadd .cse0 (bvmul (_ bv3 64) .cse6) .cse5 (bvmul (_ bv2 64) (bvmul .cse1 .cse1)) (bvneg (bvmul .cse2 (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse1))))))))) is different from true [2021-10-13 07:24:14,692 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 18 not checked. [2021-10-13 07:24:14,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117276974] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:24:14,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:24:14,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 6, 4, 10, 10] total 20 [2021-10-13 07:24:14,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694990328] [2021-10-13 07:24:14,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 07:24:14,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:24:14,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 07:24:14,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=218, Unknown=5, NotChecked=66, Total=380 [2021-10-13 07:24:14,695 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 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 07:24:28,802 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse1 ((_ sign_extend 32) (_ bv4 32))) (.cse2 ((_ sign_extend 32) (_ bv2 32))) (.cse0 ((_ sign_extend 32) (_ bv1 32)))) (and (= (bvadd .cse0 (bvneg (bvmul .cse1 c_ULTIMATE.start_main_~s~0)) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~t~0) (bvmul c_ULTIMATE.start_main_~t~0 .cse2)) .cse3) (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (let ((.cse5 (bvmul .cse0 .cse0))) (or (= (bvadd .cse3 (bvmul c_ULTIMATE.start_main_~s~0 .cse2) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse0)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse0 .cse0)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0))) (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvneg (bvmul .cse1 (let ((.cse4 (bvadd .cse0 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (bvmul .cse0 .cse4) (_ bv2 64)) (bvmul .cse4 .cse4) .cse5)))) (bvmul (_ bv4 64) (bvmul .cse0 .cse0 .cse2)) (bvmul (_ bv32 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse0 .cse0)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0)) .cse0 (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse2)) (bvmul (_ bv16 64) (bvmul .cse0 .cse0 .cse0 .cse0)) (bvmul (_ bv24 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0 .cse0)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse2) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0))) (not (= (bvadd (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0)) (bvmul (_ bv4 64) .cse5) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse2))))))) is different from false [2021-10-13 07:26:09,041 WARN L207 SmtUtils]: Spent 20.41 s on a formula simplification that was a NOOP. DAG size: 68 [2021-10-13 07:26:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:26:19,954 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2021-10-13 07:26:20,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 07:26:20,029 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 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 25 [2021-10-13 07:26:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:26:20,029 INFO L225 Difference]: With dead ends: 63 [2021-10-13 07:26:20,030 INFO L226 Difference]: Without dead ends: 47 [2021-10-13 07:26:20,031 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 122 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 131864.7ms TimeCoverageRelationStatistics Valid=184, Invalid=415, Unknown=13, NotChecked=144, Total=756 [2021-10-13 07:26:20,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-13 07:26:20,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-13 07:26:20,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 46 states have internal predecessors, (47), 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 07:26:20,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-10-13 07:26:20,045 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 25 [2021-10-13 07:26:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:26:20,046 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-10-13 07:26:20,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 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 07:26:20,046 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-10-13 07:26:20,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 07:26:20,047 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:26:20,048 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-10-13 07:26:20,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:20,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-10-13 07:26:20,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-13 07:26:20,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:26:20,662 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 07:26:20,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:26:20,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1602839570, now seen corresponding path program 2 times [2021-10-13 07:26:20,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:26:20,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442301266] [2021-10-13 07:26:20,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:26:20,663 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:26:20,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:26:20,665 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:26:20,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 07:26:21,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:26:21,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:26:21,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 07:26:21,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:22,702 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 07:26:22,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 07:26:23,748 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:26:23,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442301266] [2021-10-13 07:26:23,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442301266] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:26:23,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [997821355] [2021-10-13 07:26:23,748 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:26:23,748 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 07:26:23,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 07:26:23,750 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 07:26:23,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-13 07:26:24,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:26:24,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:26:24,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 07:26:24,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:26,483 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:26:26,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:26:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:26:49,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [997821355] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:26:49,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416557330] [2021-10-13 07:26:49,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 07:26:49,543 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 07:26:49,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:26:49,543 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 07:26:49,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 07:26:50,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 07:26:50,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 07:26:50,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 07:26:50,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:26:55,016 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 07:26:55,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:28:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-13 07:28:36,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416557330] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 07:28:36,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 07:28:36,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 8, 11, 11] total 36 [2021-10-13 07:28:36,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578727980] [2021-10-13 07:28:36,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-13 07:28:36,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:28:36,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-13 07:28:36,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1049, Unknown=0, NotChecked=0, Total=1260 [2021-10-13 07:28:36,689 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 36 states, 36 states have (on average 4.666666666666667) internal successors, (168), 36 states have internal predecessors, (168), 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 07:28:48,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:28:48,323 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-13 07:28:48,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 07:28:48,324 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.666666666666667) internal successors, (168), 36 states have internal predecessors, (168), 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 37 [2021-10-13 07:28:48,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:28:48,325 INFO L225 Difference]: With dead ends: 47 [2021-10-13 07:28:48,325 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:28:48,327 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 449 ImplicationChecksByTransitivity, 82666.5ms TimeCoverageRelationStatistics Valid=304, Invalid=1336, Unknown=0, NotChecked=0, Total=1640 [2021-10-13 07:28:48,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:28:48,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:28:48,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 07:28:48,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:28:48,328 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2021-10-13 07:28:48,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:28:48,328 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:28:48,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.666666666666667) internal successors, (168), 36 states have internal predecessors, (168), 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 07:28:48,329 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:28:48,329 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:28:48,332 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:28:48,332 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:28:48,333 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:28:48,333 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:28:48,333 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:28:48,333 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:28:48,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-13 07:28:48,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-13 07:28:48,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2021-10-13 07:28:48,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 07:28:48,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:28:48,946 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:28:49,020 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:28:49,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:28:49,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:28:49,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:28:49,160 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:28:49,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:28:49,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:29:16,140 WARN L207 SmtUtils]: Spent 19.61 s on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2021-10-13 07:29:22,184 WARN L207 SmtUtils]: Spent 6.04 s on a formula simplification. DAG size of input: 67 DAG size of output: 25 [2021-10-13 07:29:24,318 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:29:24,318 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:29:24,318 INFO L860 garLoopResultBuilder]: At program point L48(lines 20 49) the Hoare annotation is: true [2021-10-13 07:29:24,318 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:29:24,318 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:29:24,318 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:29:24,318 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:29:24,319 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:29:24,319 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:29:24,319 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse8 ((_ sign_extend 32) (_ bv2 32))) (.cse2 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse7 (bvmul (_ bv2 64) .cse2)) (.cse5 (bvsle ULTIMATE.start_main_~n~0 (_ bv5 32))) (.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse6 (= ULTIMATE.start_main_~t~0 (bvadd .cse2 (bvmul ULTIMATE.start_main_~a~0 .cse8))))) (or (and .cse0 .cse1 (= .cse2 ULTIMATE.start_main_~s~0) (= .cse3 ULTIMATE.start_main_~a~0) .cse4 .cse5 .cse6) (and .cse0 .cse1 (= (bvadd .cse3 .cse7) ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse2)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse2 .cse2))) .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse4 (= (bvadd .cse7 .cse8) ULTIMATE.start_main_~s~0) .cse5 (= ULTIMATE.start_main_~a~0 (bvadd .cse3 .cse2)) .cse6)))) [2021-10-13 07:29:24,319 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:29:24,319 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-10-13 07:29:24,319 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse5 ((_ sign_extend 32) (_ bv2 32))) (.cse8 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse7 ((_ sign_extend 32) (_ bv0 32))) (.cse4 (bvmul (_ bv2 64) .cse8)) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse6 (bvsle ULTIMATE.start_main_~n~0 (_ bv5 32))) (.cse9 (= ULTIMATE.start_main_~t~0 (bvadd .cse8 (bvmul ULTIMATE.start_main_~a~0 .cse5))))) (or (and .cse0 .cse1 .cse2 .cse3 (= (bvadd .cse4 .cse5) ULTIMATE.start_main_~s~0) .cse6 (= ULTIMATE.start_main_~a~0 (bvadd .cse7 .cse8)) .cse9) (and .cse0 .cse1 .cse2 (= .cse8 ULTIMATE.start_main_~s~0) (= .cse7 ULTIMATE.start_main_~a~0) .cse3 .cse6 .cse9) (and .cse0 .cse1 .cse2 (= (bvadd .cse7 .cse4) ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse8)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse8 .cse8))) .cse3 .cse6 .cse9)))) [2021-10-13 07:29:24,319 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:29:24,319 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 36 37) the Hoare annotation is: (let ((.cse5 ((_ sign_extend 32) (_ bv2 32))) (.cse8 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse7 ((_ sign_extend 32) (_ bv0 32))) (.cse4 (bvmul (_ bv2 64) .cse8)) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse6 (bvsle ULTIMATE.start_main_~n~0 (_ bv5 32))) (.cse9 (= ULTIMATE.start_main_~t~0 (bvadd .cse8 (bvmul ULTIMATE.start_main_~a~0 .cse5))))) (or (and .cse0 .cse1 .cse2 .cse3 (= (bvadd .cse4 .cse5) ULTIMATE.start_main_~s~0) .cse6 (= ULTIMATE.start_main_~a~0 (bvadd .cse7 .cse8)) .cse9) (and .cse0 .cse1 .cse2 (= .cse8 ULTIMATE.start_main_~s~0) (= .cse7 ULTIMATE.start_main_~a~0) .cse3 .cse6 .cse9) (and .cse0 .cse1 .cse2 (= (bvadd .cse7 .cse4) ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse8)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse8 .cse8))) .cse3 .cse6 .cse9)))) [2021-10-13 07:29:24,320 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:29:24,320 INFO L853 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse2 ((_ sign_extend 32) (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~t~0 (bvadd .cse0 (bvmul ULTIMATE.start_main_~a~0 .cse1))))) (or (and (= (bvadd .cse0 (bvneg (bvmul ((_ sign_extend 32) (_ bv4 32)) ULTIMATE.start_main_~s~0)) (bvmul ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) (bvmul ULTIMATE.start_main_~t~0 .cse1)) .cse2) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse0)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse0 .cse0))) (or (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) .cse3 .cse4) (and (= .cse0 ULTIMATE.start_main_~s~0) (= .cse2 ULTIMATE.start_main_~a~0) .cse3 .cse4)))) [2021-10-13 07:29:24,320 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:29:24,320 INFO L857 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:29:24,320 INFO L853 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32)))) (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= (bvadd .cse0 (bvneg (bvmul ((_ sign_extend 32) (_ bv4 32)) ULTIMATE.start_main_~s~0)) (bvmul ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) (bvmul ULTIMATE.start_main_~t~0 .cse1)) ((_ sign_extend 32) (_ bv0 32))) (= ULTIMATE.start_main_~t~0 (bvadd .cse0 (bvmul ULTIMATE.start_main_~a~0 .cse1))))) [2021-10-13 07:29:24,320 INFO L857 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-13 07:29:24,321 INFO L860 garLoopResultBuilder]: At program point L12-17(lines 11 17) the Hoare annotation is: true [2021-10-13 07:29:24,321 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:29:24,321 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:29:24,321 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:29:24,321 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:29:24,322 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:29:24,322 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-13 07:29:24,322 INFO L857 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:29:24,322 INFO L857 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-13 07:29:24,322 INFO L853 garLoopResultBuilder]: At program point L30-2(lines 30 42) the Hoare annotation is: (let ((.cse6 ((_ sign_extend 32) (_ bv0 32))) (.cse3 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse1 (= .cse3 ULTIMATE.start_main_~t~0)) (.cse4 (= .cse6 ULTIMATE.start_main_~a~0)) (.cse10 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse8 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse9 (or (and .cse1 .cse4) (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~t~0 (bvadd .cse3 (bvmul ULTIMATE.start_main_~a~0 .cse10)))))) (.cse7 (bvmul (_ bv2 64) .cse3)) (.cse5 (bvsle ULTIMATE.start_main_~n~0 (_ bv5 32)))) (or (and .cse0 .cse1 .cse2 (= .cse3 ULTIMATE.start_main_~s~0) .cse4 .cse5) (and .cse0 .cse2 (= (bvadd .cse6 .cse7) ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse3)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse3 .cse3))) .cse8 .cse9 .cse5) (and .cse0 .cse2 .cse8 .cse9 (= (bvadd .cse7 .cse10) ULTIMATE.start_main_~s~0) .cse5 (= ULTIMATE.start_main_~a~0 (bvadd .cse6 .cse3))))))) [2021-10-13 07:29:24,323 INFO L857 garLoopResultBuilder]: For program point L30-3(lines 30 42) no Hoare annotation was computed. [2021-10-13 07:29:24,323 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 07:29:24,328 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:29:24,355 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) 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) [2021-10-13 07:29:24,358 INFO L168 Benchmark]: Toolchain (without parser) took 591012.71 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 70.8 MB in the beginning and 109.8 MB in the end (delta: -39.0 MB). Peak memory consumption was 76.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:24,359 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:29:24,359 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.31 ms. Allocated memory is still 90.2 MB. Free memory was 70.7 MB in the beginning and 74.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:24,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.24 ms. Allocated memory is still 90.2 MB. Free memory was 74.9 MB in the beginning and 73.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:24,360 INFO L168 Benchmark]: Boogie Preprocessor took 26.82 ms. Allocated memory is still 90.2 MB. Free memory was 73.3 MB in the beginning and 71.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:29:24,360 INFO L168 Benchmark]: RCFGBuilder took 737.30 ms. Allocated memory is still 90.2 MB. Free memory was 71.8 MB in the beginning and 61.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:24,361 INFO L168 Benchmark]: TraceAbstraction took 589840.00 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 60.7 MB in the beginning and 109.8 MB in the end (delta: -49.1 MB). Peak memory consumption was 69.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:29:24,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 56.6 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.31 ms. Allocated memory is still 90.2 MB. Free memory was 70.7 MB in the beginning and 74.9 MB in the end (delta: -4.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.24 ms. Allocated memory is still 90.2 MB. Free memory was 74.9 MB in the beginning and 73.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.82 ms. Allocated memory is still 90.2 MB. Free memory was 73.3 MB in the beginning and 71.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 737.30 ms. Allocated memory is still 90.2 MB. Free memory was 71.8 MB in the beginning and 61.4 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 589840.00 ms. Allocated memory was 90.2 MB in the beginning and 130.0 MB in the end (delta: 39.8 MB). Free memory was 60.7 MB in the beginning and 109.8 MB in the end (delta: -49.1 MB). Peak memory consumption was 69.4 MB. 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 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 589753.2ms, OverallIterations: 7, TraceHistogramMax: 5, EmptinessCheckTime: 11.3ms, AutomataDifference: 175659.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 35375.4ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 102 SDtfs, 332 SDslu, 215 SDs, 0 SdLazy, 670 SolverSat, 309 SolverUnsat, 38 SolverUnknown, 0 SolverNotchecked, 97959.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 545 GetRequests, 434 SyntacticMatches, 7 SemanticMatches, 104 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 661 ImplicationChecksByTransitivity, 226079.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=5, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 75.2ms AutomataMinimizationTime, 7 MinimizatonAttempts, 48 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 30 NumberOfFragments, 625 HoareAnnotationTreeSize, 8 FomulaSimplifications, 315 FormulaSimplificationTreeSizeReduction, 236.3ms HoareSimplificationTime, 8 FomulaSimplificationsInter, 1674 FormulaSimplificationTreeSizeReductionInter, 35132.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 97.6ms SsaConstructionTime, 2202.1ms SatisfiabilityAnalysisTime, 372154.0ms InterpolantComputationTime, 268 NumberOfCodeBlocks, 268 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 510 ConstructedInterpolants, 3 QuantifiedInterpolants, 10564 SizeOfPredicates, 58 NumberOfNonLiveVariables, 734 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 182/486 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && cond == 1bv32) && ~bvsle64(n, 5bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 5bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && cond == 1bv32) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && ~bvsle64(n, 5bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((~bvsge32(n, 0bv32) && ~sign_extendFrom8To32(1bv32) == t) && cond == 1bv32) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && ~bvsle64(n, 5bv32)) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) && ~bvsle64(n, 5bv32))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && cond == 1bv32) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && ~bvsle64(n, 5bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && cond == 1bv32) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && ~bvsle64(n, 5bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && cond == 1bv32) && ~bvsle64(n, 5bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 5bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 07:29:24,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9b43d58b-1ced-495b-83d0-be3d608594bc/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...