./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1fb537bb1f9460614fe6afddcc1ce057dbd99c50 .............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1fb537bb1f9460614fe6afddcc1ce057dbd99c50 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-7b2dab5 [2020-12-09 04:26:56,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:26:56,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:26:56,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:26:56,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:26:56,602 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:26:56,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:26:56,606 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:26:56,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:26:56,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:26:56,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:26:56,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:26:56,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:26:56,613 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:26:56,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:26:56,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:26:56,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:26:56,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:26:56,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:26:56,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:26:56,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:26:56,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:26:56,626 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:26:56,627 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:26:56,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:26:56,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:26:56,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:26:56,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:26:56,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:26:56,633 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:26:56,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:26:56,634 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:26:56,635 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:26:56,636 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:26:56,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:26:56,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:26:56,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:26:56,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:26:56,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:26:56,638 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:26:56,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:26:56,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 04:26:56,662 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:26:56,662 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:26:56,663 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:26:56,663 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:26:56,663 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:26:56,663 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:26:56,663 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 04:26:56,663 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:26:56,663 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:26:56,664 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 04:26:56,664 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 04:26:56,664 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:26:56,664 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 04:26:56,664 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 04:26:56,664 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 04:26:56,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:26:56,665 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:26:56,665 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 04:26:56,665 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:26:56,665 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:26:56,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:26:56,666 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:26:56,666 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:26:56,666 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:26:56,666 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:26:56,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:26:56,666 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:26:56,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:26:56,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:26:56,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:26:56,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:26:56,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:26:56,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:26:56,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:26:56,667 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 04:26:56,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 04:26:56,667 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:26:56,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:26:56,668 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:26:56,668 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fb537bb1f9460614fe6afddcc1ce057dbd99c50 [2020-12-09 04:26:56,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:26:56,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:26:56,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:26:56,862 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:26:56,863 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:26:56,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c [2020-12-09 04:26:56,905 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data/896e9d78b/ea8512fb62df43d7971dcbe8ccd75fd1/FLAGaf28adb4e [2020-12-09 04:26:57,287 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:26:57,287 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c [2020-12-09 04:26:57,292 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data/896e9d78b/ea8512fb62df43d7971dcbe8ccd75fd1/FLAGaf28adb4e [2020-12-09 04:26:57,301 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data/896e9d78b/ea8512fb62df43d7971dcbe8ccd75fd1 [2020-12-09 04:26:57,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:26:57,304 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:26:57,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:26:57,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:26:57,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:26:57,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b7ad4ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57, skipping insertion in model container [2020-12-09 04:26:57,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:26:57,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:26:57,435 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c[458,471] [2020-12-09 04:26:57,452 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:26:57,458 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:26:57,466 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c[458,471] [2020-12-09 04:26:57,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:26:57,481 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:26:57,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57 WrapperNode [2020-12-09 04:26:57,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:26:57,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:26:57,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:26:57,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:26:57,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:26:57,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:26:57,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:26:57,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:26:57,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... [2020-12-09 04:26:57,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:26:57,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:26:57,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:26:57,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:26:57,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:26:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 04:26:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:26:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:26:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:26:57,823 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:26:57,823 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-09 04:26:57,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:26:57 BoogieIcfgContainer [2020-12-09 04:26:57,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:26:57,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:26:57,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:26:57,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:26:57,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:26:57" (1/3) ... [2020-12-09 04:26:57,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0dd990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:26:57, skipping insertion in model container [2020-12-09 04:26:57,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:26:57" (2/3) ... [2020-12-09 04:26:57,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0dd990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:26:57, skipping insertion in model container [2020-12-09 04:26:57,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:26:57" (3/3) ... [2020-12-09 04:26:57,840 INFO L111 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound5.c [2020-12-09 04:26:57,862 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:26:57,866 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 04:26:57,876 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 04:26:57,900 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:26:57,901 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:26:57,901 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:26:57,901 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:26:57,901 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:26:57,901 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:26:57,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:26:57,902 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:26:57,915 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-09 04:26:57,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 04:26:57,920 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:26:57,921 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 04:26:57,921 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:26:57,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:26:57,927 INFO L82 PathProgramCache]: Analyzing trace with hash 3301933, now seen corresponding path program 1 times [2020-12-09 04:26:57,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:26:57,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739494391] [2020-12-09 04:26:57,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:26:58,017 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 04:26:58,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [441368761] [2020-12-09 04:26:58,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:26:58,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:26:58,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 04:26:58,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:26:58,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:26:58,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:26:58,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:26:58,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739494391] [2020-12-09 04:26:58,149 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 04:26:58,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441368761] [2020-12-09 04:26:58,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:26:58,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 04:26:58,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269072001] [2020-12-09 04:26:58,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 04:26:58,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 04:26:58,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 04:26:58,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 04:26:58,164 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2020-12-09 04:27:10,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:27:10,824 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-12-09 04:27:10,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 04:27:10,826 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-09 04:27:10,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:27:10,831 INFO L225 Difference]: With dead ends: 52 [2020-12-09 04:27:10,831 INFO L226 Difference]: Without dead ends: 27 [2020-12-09 04:27:10,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-12-09 04:27:10,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-09 04:27:10,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2020-12-09 04:27:10,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-09 04:27:10,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-12-09 04:27:10,858 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 4 [2020-12-09 04:27:10,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:27:10,858 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-12-09 04:27:10,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 04:27:10,858 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-12-09 04:27:10,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 04:27:10,859 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:27:10,859 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-12-09 04:27:11,060 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 04:27:11,061 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:27:11,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:27:11,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1187658925, now seen corresponding path program 1 times [2020-12-09 04:27:11,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 04:27:11,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731556079] [2020-12-09 04:27:11,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 04:27:11,105 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 04:27:11,106 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [906529304] [2020-12-09 04:27:11,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:27:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:27:11,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-09 04:27:11,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:27:11,258 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:27:11,258 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:27:13,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731556079] [2020-12-09 04:27:13,211 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 04:27:13,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906529304] [2020-12-09 04:27:13,212 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-09 04:27:13,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1062004741] [2020-12-09 04:27:13,226 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2020-12-09 04:27:13,226 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 04:27:13,229 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 04:27:13,233 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 04:27:13,233 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 04:27:13,681 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 04:27:13,825 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-12-09 04:27:14,288 WARN L197 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94 [2020-12-09 04:27:14,525 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 04:27:14,525 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:27:14,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-09 04:27:14,525 ERROR L205 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2020-12-09 04:27:14,525 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 04:27:14,728 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:27:14,741 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-12-09 04:27:14,741 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-12-09 04:27:14,741 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-12-09 04:27:14,742 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-12-09 04:27:14,764 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-09 04:27:14,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:27:14 BoogieIcfgContainer [2020-12-09 04:27:14,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 04:27:14,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 04:27:14,766 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 04:27:14,766 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 04:27:14,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:26:57" (3/4) ... [2020-12-09 04:27:14,770 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 04:27:14,770 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 04:27:14,772 INFO L168 Benchmark]: Toolchain (without parser) took 17467.17 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 55.3 MB in the beginning and 88.8 MB in the end (delta: -33.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:27:14,773 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 92.3 MB. Free memory was 71.4 MB in the beginning and 71.3 MB in the end (delta: 66.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:27:14,774 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.75 ms. Allocated memory is still 92.3 MB. Free memory was 55.1 MB in the beginning and 69.9 MB in the end (delta: -14.8 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:27:14,774 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.01 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:27:14,775 INFO L168 Benchmark]: Boogie Preprocessor took 15.30 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:27:14,776 INFO L168 Benchmark]: RCFGBuilder took 304.16 ms. Allocated memory is still 92.3 MB. Free memory was 67.2 MB in the beginning and 48.5 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 04:27:14,776 INFO L168 Benchmark]: TraceAbstraction took 16937.53 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 48.0 MB in the beginning and 88.8 MB in the end (delta: -40.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:27:14,777 INFO L168 Benchmark]: Witness Printer took 4.94 ms. Allocated memory is still 113.2 MB. Free memory is still 88.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:27:14,780 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 92.3 MB. Free memory was 71.4 MB in the beginning and 71.3 MB in the end (delta: 66.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 176.75 ms. Allocated memory is still 92.3 MB. Free memory was 55.1 MB in the beginning and 69.9 MB in the end (delta: -14.8 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.01 ms. Allocated memory is still 92.3 MB. Free memory was 69.9 MB in the beginning and 68.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.30 ms. Allocated memory is still 92.3 MB. Free memory was 68.3 MB in the beginning and 67.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 304.16 ms. Allocated memory is still 92.3 MB. Free memory was 67.2 MB in the beginning and 48.5 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16937.53 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 48.0 MB in the beginning and 88.8 MB in the end (delta: -40.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.94 ms. Allocated memory is still 113.2 MB. Free memory is still 88.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L18] short k; [L19] long long y, x, c; [L20] k = __VERIFIER_nondet_short() [L7] COND TRUE !cond [L7] COND FALSE !(!cond) [L24] y = 0 [L25] x = 0 [L26] c = 0 [L28] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y + x [L28] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L31] COND FALSE !(!(c < k)) [L34] c = c + 1 [L35] y = y + 1 [L36] x = y * y * y * y + x [L28] COND TRUE 1 [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 16.8s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 33 SDslu, 27 SDs, 0 SdLazy, 25 SolverSat, 24 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 12.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 6 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 04:27:16,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 04:27:16,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 04:27:16,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 04:27:16,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 04:27:16,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 04:27:16,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 04:27:16,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 04:27:16,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 04:27:16,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 04:27:16,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 04:27:16,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 04:27:16,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 04:27:16,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 04:27:16,382 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 04:27:16,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 04:27:16,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 04:27:16,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 04:27:16,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 04:27:16,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 04:27:16,390 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 04:27:16,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 04:27:16,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 04:27:16,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 04:27:16,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 04:27:16,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 04:27:16,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 04:27:16,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 04:27:16,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 04:27:16,399 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 04:27:16,399 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 04:27:16,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 04:27:16,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 04:27:16,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 04:27:16,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 04:27:16,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 04:27:16,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 04:27:16,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 04:27:16,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 04:27:16,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 04:27:16,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 04:27:16,405 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 04:27:16,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 04:27:16,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 04:27:16,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 04:27:16,425 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 04:27:16,425 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 04:27:16,425 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 04:27:16,425 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 04:27:16,425 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 04:27:16,425 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 04:27:16,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 04:27:16,426 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 04:27:16,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 04:27:16,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 04:27:16,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 04:27:16,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 04:27:16,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 04:27:16,427 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 04:27:16,427 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 04:27:16,427 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 04:27:16,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 04:27:16,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 04:27:16,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 04:27:16,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 04:27:16,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 04:27:16,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 04:27:16,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 04:27:16,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:27:16,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 04:27:16,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 04:27:16,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 04:27:16,429 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 04:27:16,429 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 04:27:16,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 04:27:16,429 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 04:27:16,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 04:27:16,429 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fb537bb1f9460614fe6afddcc1ce057dbd99c50 [2020-12-09 04:27:16,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 04:27:16,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 04:27:16,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 04:27:16,686 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 04:27:16,687 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 04:27:16,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c [2020-12-09 04:27:16,728 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data/252e02ec8/1960771b9f9146b0aad05d0c298bd0d8/FLAG74bf0a621 [2020-12-09 04:27:17,118 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 04:27:17,119 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c [2020-12-09 04:27:17,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data/252e02ec8/1960771b9f9146b0aad05d0c298bd0d8/FLAG74bf0a621 [2020-12-09 04:27:17,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/data/252e02ec8/1960771b9f9146b0aad05d0c298bd0d8 [2020-12-09 04:27:17,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 04:27:17,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 04:27:17,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 04:27:17,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 04:27:17,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 04:27:17,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,149 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637bff55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17, skipping insertion in model container [2020-12-09 04:27:17,149 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,156 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 04:27:17,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 04:27:17,273 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c[458,471] [2020-12-09 04:27:17,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:27:17,302 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 04:27:17,313 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c[458,471] [2020-12-09 04:27:17,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 04:27:17,340 INFO L208 MainTranslator]: Completed translation [2020-12-09 04:27:17,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17 WrapperNode [2020-12-09 04:27:17,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 04:27:17,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 04:27:17,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 04:27:17,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 04:27:17,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 04:27:17,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 04:27:17,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 04:27:17,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 04:27:17,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... [2020-12-09 04:27:17,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 04:27:17,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 04:27:17,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 04:27:17,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 04:27:17,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 04:27:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 04:27:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 04:27:17,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 04:27:17,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 04:27:19,236 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 04:27:19,237 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-09 04:27:19,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:27:19 BoogieIcfgContainer [2020-12-09 04:27:19,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 04:27:19,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 04:27:19,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 04:27:19,241 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 04:27:19,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:27:17" (1/3) ... [2020-12-09 04:27:19,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e6aefe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:27:19, skipping insertion in model container [2020-12-09 04:27:19,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:27:17" (2/3) ... [2020-12-09 04:27:19,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68e6aefe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:27:19, skipping insertion in model container [2020-12-09 04:27:19,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:27:19" (3/3) ... [2020-12-09 04:27:19,243 INFO L111 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound5.c [2020-12-09 04:27:19,253 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 04:27:19,255 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-09 04:27:19,262 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-09 04:27:19,278 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 04:27:19,278 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 04:27:19,278 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 04:27:19,278 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 04:27:19,278 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 04:27:19,278 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 04:27:19,278 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 04:27:19,278 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 04:27:19,286 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-12-09 04:27:19,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 04:27:19,289 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:27:19,290 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:27:19,290 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:27:19,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:27:19,294 INFO L82 PathProgramCache]: Analyzing trace with hash -594062832, now seen corresponding path program 1 times [2020-12-09 04:27:19,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:27:19,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1994152388] [2020-12-09 04:27:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 04:27:19,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:27:19,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 04:27:19,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:27:19,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:27:19,499 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:27:19,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1994152388] [2020-12-09 04:27:19,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:27:19,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 04:27:19,501 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71880096] [2020-12-09 04:27:19,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 04:27:19,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:27:19,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 04:27:19,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:27:19,514 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-12-09 04:27:19,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:27:19,524 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions. [2020-12-09 04:27:19,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 04:27:19,525 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-09 04:27:19,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:27:19,534 INFO L225 Difference]: With dead ends: 43 [2020-12-09 04:27:19,534 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 04:27:19,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 04:27:19,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 04:27:19,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-09 04:27:19,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 04:27:19,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-12-09 04:27:19,557 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 9 [2020-12-09 04:27:19,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:27:19,557 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-12-09 04:27:19,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 04:27:19,557 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-12-09 04:27:19,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 04:27:19,558 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:27:19,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:27:19,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 04:27:19,759 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:27:19,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:27:19,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1182791572, now seen corresponding path program 1 times [2020-12-09 04:27:19,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:27:19,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292489406] [2020-12-09 04:27:19,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 04:27:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:27:19,945 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 04:27:19,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:27:20,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:27:20,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 04:27:20,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292489406] [2020-12-09 04:27:20,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 04:27:20,038 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 04:27:20,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166953948] [2020-12-09 04:27:20,039 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 04:27:20,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:27:20,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 04:27:20,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 04:27:20,040 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2020-12-09 04:27:21,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:27:21,391 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2020-12-09 04:27:21,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 04:27:21,392 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-12-09 04:27:21,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:27:21,392 INFO L225 Difference]: With dead ends: 33 [2020-12-09 04:27:21,392 INFO L226 Difference]: Without dead ends: 23 [2020-12-09 04:27:21,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 04:27:21,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-12-09 04:27:21,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2020-12-09 04:27:21,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-12-09 04:27:21,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2020-12-09 04:27:21,398 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2020-12-09 04:27:21,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:27:21,398 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2020-12-09 04:27:21,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 04:27:21,398 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2020-12-09 04:27:21,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-09 04:27:21,399 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:27:21,399 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:27:21,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 04:27:21,601 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:27:21,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:27:21,603 INFO L82 PathProgramCache]: Analyzing trace with hash 636965506, now seen corresponding path program 1 times [2020-12-09 04:27:21,605 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:27:21,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105812905] [2020-12-09 04:27:21,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 04:27:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:27:21,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:27:21,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:27:22,723 WARN L197 SmtUtils]: Spent 501.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-09 04:27:23,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:27:23,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:27:26,488 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 04:27:29,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 04:27:29,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105812905] [2020-12-09 04:27:29,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [36450424] [2020-12-09 04:27:29,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:27:30,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:27:30,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 04:27:30,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:27:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:27:30,503 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:27:32,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 04:27:32,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466164828] [2020-12-09 04:27:32,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:27:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:27:33,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 04:27:33,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:27:34,518 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:27:34,518 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:27:37,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 04:27:37,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 04:27:37,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5, 4, 6, 4] total 8 [2020-12-09 04:27:37,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741797180] [2020-12-09 04:27:37,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 04:27:37,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:27:37,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 04:27:37,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-09 04:27:37,468 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 8 states. [2020-12-09 04:27:40,153 WARN L197 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 04:27:44,051 WARN L197 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:27:45,063 WARN L197 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-09 04:27:51,671 WARN L197 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 26 [2020-12-09 04:27:51,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:27:51,672 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2020-12-09 04:27:51,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 04:27:51,672 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-12-09 04:27:51,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:27:51,673 INFO L225 Difference]: With dead ends: 31 [2020-12-09 04:27:51,673 INFO L226 Difference]: Without dead ends: 27 [2020-12-09 04:27:51,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 8 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-12-09 04:27:51,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-09 04:27:51,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2020-12-09 04:27:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-09 04:27:51,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-12-09 04:27:51,678 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2020-12-09 04:27:51,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:27:51,679 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-12-09 04:27:51,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 04:27:51,679 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-12-09 04:27:51,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-09 04:27:51,679 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:27:51,680 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:27:52,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,5 cvc4 --incremental --print-success --lang smt [2020-12-09 04:27:52,284 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:27:52,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:27:52,285 INFO L82 PathProgramCache]: Analyzing trace with hash -531865812, now seen corresponding path program 1 times [2020-12-09 04:27:52,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:27:52,287 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292207349] [2020-12-09 04:27:52,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 04:27:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:27:52,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 12 conjunts are in the unsatisfiable core [2020-12-09 04:27:52,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:27:53,073 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:27:53,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:27:53,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:27:54,691 WARN L197 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-09 04:27:56,405 WARN L197 SmtUtils]: Spent 886.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 04:27:58,566 WARN L197 SmtUtils]: Spent 870.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 04:27:58,585 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:27:58,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292207349] [2020-12-09 04:27:58,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [675205211] [2020-12-09 04:27:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:27:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:27:59,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 04:27:59,381 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:27:59,517 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:27:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:27:59,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:28:00,659 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 04:28:00,684 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:00,684 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464345514] [2020-12-09 04:28:00,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:28:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:28:03,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 20 conjunts are in the unsatisfiable core [2020-12-09 04:28:03,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:28:06,447 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2020-12-09 04:28:09,326 WARN L197 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 43 DAG size of output: 20 [2020-12-09 04:28:09,337 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:28:09,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:09,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:28:11,444 WARN L197 SmtUtils]: Spent 945.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 04:28:11,455 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 04:28:11,456 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 04:28:24,526 WARN L197 SmtUtils]: Spent 4.44 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:28:34,592 WARN L197 SmtUtils]: Spent 3.29 s on a formula simplification that was a NOOP. DAG size: 71 [2020-12-09 04:28:34,631 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:28:34,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 04:28:34,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6, 6, 11, 8] total 22 [2020-12-09 04:28:34,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139616862] [2020-12-09 04:28:34,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-09 04:28:34,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:28:34,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-09 04:28:34,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2020-12-09 04:28:34,633 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 22 states. [2020-12-09 04:28:43,779 WARN L197 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2020-12-09 04:28:45,828 WARN L197 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2020-12-09 04:28:49,778 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 36 [2020-12-09 04:28:53,149 WARN L197 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-09 04:28:55,189 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-09 04:28:58,047 WARN L197 SmtUtils]: Spent 1.50 s on a formula simplification that was a NOOP. DAG size: 34 [2020-12-09 04:29:08,420 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 04:29:11,280 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 04:29:13,914 WARN L197 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 04:29:17,285 WARN L197 SmtUtils]: Spent 2.35 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-09 04:29:19,420 WARN L197 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 33 [2020-12-09 04:29:23,571 WARN L197 SmtUtils]: Spent 846.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:29:25,714 WARN L197 SmtUtils]: Spent 783.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2020-12-09 04:29:29,241 WARN L197 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 32 [2020-12-09 04:29:31,654 WARN L197 SmtUtils]: Spent 949.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2020-12-09 04:29:34,360 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 33 [2020-12-09 04:29:34,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:29:34,735 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2020-12-09 04:29:34,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-09 04:29:34,751 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 17 [2020-12-09 04:29:34,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:29:34,752 INFO L225 Difference]: With dead ends: 41 [2020-12-09 04:29:34,752 INFO L226 Difference]: Without dead ends: 27 [2020-12-09 04:29:34,753 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 73.7s TimeCoverageRelationStatistics Valid=460, Invalid=1180, Unknown=0, NotChecked=0, Total=1640 [2020-12-09 04:29:34,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-12-09 04:29:34,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-12-09 04:29:34,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-12-09 04:29:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2020-12-09 04:29:34,760 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 17 [2020-12-09 04:29:34,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:29:34,760 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2020-12-09 04:29:34,760 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-12-09 04:29:34,760 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2020-12-09 04:29:34,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-09 04:29:34,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:29:34,761 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:29:35,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt [2020-12-09 04:29:35,366 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:29:35,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:29:35,368 INFO L82 PathProgramCache]: Analyzing trace with hash 728478426, now seen corresponding path program 2 times [2020-12-09 04:29:35,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:29:35,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823821717] [2020-12-09 04:29:35,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 04:29:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:29:36,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 21 conjunts are in the unsatisfiable core [2020-12-09 04:29:36,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:29:37,244 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:29:37,316 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:29:37,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:29:39,342 WARN L197 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-09 04:29:41,220 WARN L197 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 04:29:43,306 WARN L197 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 04:29:47,863 WARN L197 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-09 04:29:51,294 WARN L197 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-09 04:29:54,801 WARN L197 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-09 04:29:54,827 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:29:54,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823821717] [2020-12-09 04:29:54,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1011417897] [2020-12-09 04:29:54,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:29:57,000 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-09 04:29:57,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 04:29:57,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 04:29:57,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:29:57,688 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:29:57,704 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:29:57,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:30:02,460 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-09 04:30:02,493 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:30:02,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696895255] [2020-12-09 04:30:02,493 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:30:03,516 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-09 04:30:03,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 04:30:03,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 34 conjunts are in the unsatisfiable core [2020-12-09 04:30:03,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:30:07,119 WARN L197 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-12-09 04:30:09,915 WARN L197 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2020-12-09 04:30:16,813 WARN L197 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2020-12-09 04:30:18,837 WARN L197 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-09 04:30:21,784 WARN L197 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-12-09 04:30:25,576 WARN L197 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 72 DAG size of output: 25 [2020-12-09 04:30:25,647 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:30:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:30:25,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:30:28,666 WARN L197 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 04:30:28,673 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 04:30:28,674 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 04:30:45,863 WARN L197 SmtUtils]: Spent 3.75 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:31:02,424 WARN L197 SmtUtils]: Spent 3.03 s on a formula simplification that was a NOOP. DAG size: 71 [2020-12-09 04:31:21,894 WARN L197 SmtUtils]: Spent 4.26 s on a formula simplification that was a NOOP. DAG size: 85 [2020-12-09 04:31:40,884 WARN L197 SmtUtils]: Spent 4.18 s on a formula simplification that was a NOOP. DAG size: 87 [2020-12-09 04:31:40,895 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 04:31:40,895 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 04:32:17,845 WARN L197 SmtUtils]: Spent 8.60 s on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-12-09 04:32:42,654 WARN L197 SmtUtils]: Spent 9.91 s on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-12-09 04:32:42,710 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:32:42,710 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 04:32:42,710 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9, 9, 15, 12] total 39 [2020-12-09 04:32:42,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717474781] [2020-12-09 04:32:42,711 INFO L461 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-12-09 04:32:42,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:32:42,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-12-09 04:32:42,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=346, Invalid=1133, Unknown=3, NotChecked=0, Total=1482 [2020-12-09 04:32:42,713 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 39 states. [2020-12-09 04:33:02,702 WARN L197 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2020-12-09 04:33:06,518 WARN L197 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-09 04:33:11,898 WARN L197 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-12-09 04:33:17,538 WARN L197 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2020-12-09 04:33:19,992 WARN L197 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2020-12-09 04:33:27,978 WARN L197 SmtUtils]: Spent 4.21 s on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2020-12-09 04:33:40,051 WARN L197 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 70 DAG size of output: 41 [2020-12-09 04:33:48,504 WARN L197 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 73 DAG size of output: 44 [2020-12-09 04:34:01,740 WARN L197 SmtUtils]: Spent 3.02 s on a formula simplification that was a NOOP. DAG size: 60 [2020-12-09 04:34:13,433 WARN L197 SmtUtils]: Spent 3.49 s on a formula simplification that was a NOOP. DAG size: 57 [2020-12-09 04:34:20,106 WARN L197 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 72 [2020-12-09 04:34:30,922 WARN L197 SmtUtils]: Spent 2.46 s on a formula simplification that was a NOOP. DAG size: 46 [2020-12-09 04:34:36,177 WARN L197 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 69 [2020-12-09 04:34:42,506 WARN L197 SmtUtils]: Spent 1.83 s on a formula simplification that was a NOOP. DAG size: 43 [2020-12-09 04:34:47,169 WARN L197 SmtUtils]: Spent 2.42 s on a formula simplification that was a NOOP. DAG size: 73 [2020-12-09 04:34:55,582 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 34 [2020-12-09 04:35:01,819 WARN L197 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 04:35:08,580 WARN L197 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 04:35:14,585 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 04:35:28,415 WARN L197 SmtUtils]: Spent 2.82 s on a formula simplification that was a NOOP. DAG size: 71 [2020-12-09 04:35:35,649 WARN L197 SmtUtils]: Spent 2.70 s on a formula simplification that was a NOOP. DAG size: 68 [2020-12-09 04:35:42,562 WARN L197 SmtUtils]: Spent 2.84 s on a formula simplification that was a NOOP. DAG size: 72 [2020-12-09 04:35:43,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:35:43,321 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2020-12-09 04:35:43,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-09 04:35:43,382 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 26 [2020-12-09 04:35:43,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:35:43,383 INFO L225 Difference]: With dead ends: 59 [2020-12-09 04:35:43,383 INFO L226 Difference]: Without dead ends: 45 [2020-12-09 04:35:43,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 114 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1250 ImplicationChecksByTransitivity, 298.5s TimeCoverageRelationStatistics Valid=970, Invalid=3059, Unknown=3, NotChecked=0, Total=4032 [2020-12-09 04:35:43,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-09 04:35:43,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-09 04:35:43,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-09 04:35:43,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2020-12-09 04:35:43,401 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 26 [2020-12-09 04:35:43,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:35:43,401 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2020-12-09 04:35:43,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-12-09 04:35:43,401 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2020-12-09 04:35:43,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-09 04:35:43,403 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 04:35:43,403 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 04:35:44,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt [2020-12-09 04:35:44,006 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 04:35:44,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 04:35:44,008 INFO L82 PathProgramCache]: Analyzing trace with hash 899917594, now seen corresponding path program 3 times [2020-12-09 04:35:44,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 04:35:44,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [849837878] [2020-12-09 04:35:44,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-12-09 04:35:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 04:35:46,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 04:35:46,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:35:47,528 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 54 proven. 108 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 04:35:47,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:35:48,903 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 54 proven. 108 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-09 04:35:48,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [849837878] [2020-12-09 04:35:48,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1712918941] [2020-12-09 04:35:48,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/cvc4 Starting monitored process 14 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4 --incremental --print-success --lang smt [2020-12-09 04:35:54,612 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2020-12-09 04:35:54,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 04:35:54,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 29 conjunts are in the unsatisfiable core [2020-12-09 04:35:54,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:35:57,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 04:35:57,497 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:35:57,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:36:04,190 WARN L197 SmtUtils]: Spent 684.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-09 04:36:10,023 WARN L197 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 04:36:15,717 WARN L197 SmtUtils]: Spent 842.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-09 04:36:23,325 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 27 [2020-12-09 04:36:30,010 WARN L197 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 32 DAG size of output: 30 [2020-12-09 04:36:36,144 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:36:44,620 WARN L197 SmtUtils]: Spent 1.27 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:36:52,451 WARN L197 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:37:03,191 WARN L197 SmtUtils]: Spent 1.66 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:37:13,046 WARN L197 SmtUtils]: Spent 921.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:37:24,038 WARN L197 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 04:37:47,101 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-12-09 04:37:47,143 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:37:47,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024339795] [2020-12-09 04:37:47,144 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5292e049-f1a4-4172-925f-49714c761513/bin/utaipan/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:37:57,454 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2020-12-09 04:37:57,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-09 04:37:57,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 22 conjunts are in the unsatisfiable core [2020-12-09 04:37:57,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 04:38:05,595 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 30 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:38:05,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 04:38:34,093 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-12-09 04:38:34,093 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 04:38:35,877 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 04:38:35,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 04:38:35,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15, 15, 15, 15] total 73 [2020-12-09 04:38:35,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345103805] [2020-12-09 04:38:35,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 73 states [2020-12-09 04:38:35,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 04:38:35,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2020-12-09 04:38:35,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=915, Invalid=4333, Unknown=8, NotChecked=0, Total=5256 [2020-12-09 04:38:35,881 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 73 states. [2020-12-09 04:38:47,026 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 26 [2020-12-09 04:38:47,668 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2020-12-09 04:38:50,029 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2020-12-09 04:38:50,938 WARN L197 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 24 [2020-12-09 04:38:55,272 WARN L197 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2020-12-09 04:38:56,407 WARN L197 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2020-12-09 04:39:00,296 WARN L197 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 26 [2020-12-09 04:39:01,309 WARN L197 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 23 [2020-12-09 04:39:04,659 WARN L197 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 26 [2020-12-09 04:39:05,899 WARN L197 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2020-12-09 04:39:05,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 04:39:05,908 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2020-12-09 04:39:05,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-12-09 04:39:05,909 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 44 [2020-12-09 04:39:05,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 04:39:05,909 INFO L225 Difference]: With dead ends: 45 [2020-12-09 04:39:05,909 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 04:39:05,912 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 185 SyntacticMatches, 2 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1991 ImplicationChecksByTransitivity, 160.1s TimeCoverageRelationStatistics Valid=1373, Invalid=5759, Unknown=8, NotChecked=0, Total=7140 [2020-12-09 04:39:05,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 04:39:05,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 04:39:05,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 04:39:05,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 04:39:05,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2020-12-09 04:39:05,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 04:39:05,913 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 04:39:05,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 73 states. [2020-12-09 04:39:05,913 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 04:39:05,913 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 04:39:06,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 cvc4 --incremental --print-success --lang smt,13 mathsat -unsat_core_generation=3,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 04:39:06,517 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 04:39:38,261 WARN L197 SmtUtils]: Spent 31.60 s on a formula simplification. DAG size of input: 164 DAG size of output: 121 [2020-12-09 04:40:09,890 WARN L197 SmtUtils]: Spent 31.63 s on a formula simplification. DAG size of input: 155 DAG size of output: 57 [2020-12-09 04:40:43,435 WARN L197 SmtUtils]: Spent 33.54 s on a formula simplification. DAG size of input: 164 DAG size of output: 121 [2020-12-09 04:40:43,438 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 04:40:43,438 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-12-09 04:40:43,438 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-12-09 04:40:43,438 INFO L262 CegarLoopResult]: For program point L11-2(lines 11 12) no Hoare annotation was computed. [2020-12-09 04:40:43,438 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-12-09 04:40:43,438 INFO L262 CegarLoopResult]: For program point L7-2(line 7) no Hoare annotation was computed. [2020-12-09 04:40:43,439 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 04:40:43,439 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 04:40:43,439 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 04:40:43,439 INFO L258 CegarLoopResult]: At program point L28-2(lines 28 37) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 16) ULTIMATE.start_main_~k~0)) (.cse13 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse1 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse22 (bvmul .cse13 (_ bv18446744073709551615 64))) (.cse11 ((_ sign_extend 32) .cse0)) (.cse17 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (.cse3 ((_ sign_extend 32) (_ bv0 32)))) (let ((.cse10 (bvadd .cse13 .cse3)) (.cse9 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse4 (bvmul (bvmul .cse13 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (_ bv18446744073709551612 64))) (.cse5 (bvmul .cse17 (_ bv2 64))) (.cse18 (bvmul (bvmul .cse3 .cse3 .cse3 .cse3) (_ bv2 64))) (.cse6 (bvmul (bvmul .cse13 .cse13 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (_ bv6 64))) (.cse19 (bvmul (bvmul .cse13 .cse13 .cse13 .cse3) (_ bv36 64))) (.cse20 (bvmul (bvmul .cse13 .cse13 .cse3 .cse3) (_ bv30 64))) (.cse7 (bvmul .cse13 .cse13 .cse13 .cse13)) (.cse8 (bvmul (bvmul .cse13 .cse13 .cse13 ULTIMATE.start_main_~y~0) (_ bv18446744073709551612 64))) (.cse21 (bvmul (bvmul .cse13 .cse3 .cse3 .cse3) (_ bv12 64))) (.cse2 (bvsle .cse0 (_ bv5 32))) (.cse15 (bvslt (bvadd .cse22 ULTIMATE.start_main_~c~0) .cse11)) (.cse12 (or .cse1 (= (_ bv0 32) ULTIMATE.start_assume_abort_if_not_~cond))) (.cse14 (= .cse3 (bvadd (bvmul ((_ sign_extend 32) (_ bv10 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg (bvmul ((_ sign_extend 32) (_ bv30 32)) ULTIMATE.start_main_~x~0)) (bvmul ((_ sign_extend 32) (_ bv15 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg ULTIMATE.start_main_~y~0))))) (or (and (bvsge .cse0 (_ bv0 32)) .cse1 .cse2 (= .cse3 ULTIMATE.start_main_~x~0) (= .cse3 ULTIMATE.start_main_~y~0) (= .cse3 ULTIMATE.start_main_~c~0)) (and (= ULTIMATE.start_main_~x~0 (bvadd .cse4 .cse5 .cse6 .cse3 .cse7 .cse8)) .cse9 .cse1 .cse2 (bvslt .cse10 .cse11) .cse12 (= .cse3 (bvadd (bvmul .cse13 (_ bv18446744073709551614 64)) ULTIMATE.start_main_~y~0)) (= ULTIMATE.start_main_~c~0 (bvadd (bvmul .cse13 (_ bv2 64)) .cse3)) .cse14) (let ((.cse16 (bvadd (bvmul .cse13 (_ bv3 64)) .cse3))) (and .cse9 .cse1 .cse2 .cse15 (= .cse16 ULTIMATE.start_main_~c~0) (= .cse16 ULTIMATE.start_main_~y~0) .cse12 (= (bvadd .cse17 .cse18 .cse19 .cse20 .cse3 (bvmul .cse7 (_ bv17 64)) .cse21) ULTIMATE.start_main_~x~0) .cse14)) (and (= ULTIMATE.start_main_~x~0 (bvadd .cse17 .cse3)) .cse9 .cse1 .cse2 (= .cse3 (bvadd .cse22 ULTIMATE.start_main_~y~0)) (= .cse10 ULTIMATE.start_main_~c~0) (bvslt .cse3 .cse11) .cse12 .cse14) (and (= .cse3 (bvadd (bvmul .cse13 (_ bv18446744073709551611 64)) ULTIMATE.start_main_~c~0)) .cse9 .cse1 (= (bvadd (bvmul .cse13 (_ bv5 64)) .cse3) ULTIMATE.start_main_~y~0) (= (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ULTIMATE.start_main_~y~0 .cse11)) .cse12 .cse14) (let ((.cse23 (bvadd (bvmul .cse13 (_ bv4 64)) .cse3))) (and .cse9 .cse1 (= (bvadd .cse4 .cse5 .cse18 .cse6 .cse19 .cse20 .cse3 (bvmul .cse7 (_ bv18 64)) .cse8 .cse21) ULTIMATE.start_main_~x~0) .cse2 (= .cse23 ULTIMATE.start_main_~c~0) .cse15 (= .cse23 ULTIMATE.start_main_~y~0) .cse12 .cse14)))))) [2020-12-09 04:40:43,439 INFO L262 CegarLoopResult]: For program point L28-3(lines 28 37) no Hoare annotation was computed. [2020-12-09 04:40:43,439 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 04:40:43,439 INFO L265 CegarLoopResult]: At program point L41(lines 17 42) the Hoare annotation is: true [2020-12-09 04:40:43,440 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 04:40:43,440 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 04:40:43,440 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-12-09 04:40:43,440 INFO L258 CegarLoopResult]: At program point L10-2(lines 31 32) the Hoare annotation is: (let ((.cse22 ((_ sign_extend 16) ULTIMATE.start_main_~k~0)) (.cse12 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse7 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond)) (.cse21 (bvmul .cse12 (_ bv18446744073709551615 64))) (.cse10 ((_ sign_extend 32) .cse22)) (.cse16 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (.cse3 ((_ sign_extend 32) (_ bv0 32)))) (let ((.cse9 (bvadd .cse12 .cse3)) (.cse6 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse0 (bvmul (bvmul .cse12 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (_ bv18446744073709551612 64))) (.cse1 (bvmul .cse16 (_ bv2 64))) (.cse17 (bvmul (bvmul .cse3 .cse3 .cse3 .cse3) (_ bv2 64))) (.cse2 (bvmul (bvmul .cse12 .cse12 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (_ bv6 64))) (.cse18 (bvmul (bvmul .cse12 .cse12 .cse12 .cse3) (_ bv36 64))) (.cse19 (bvmul (bvmul .cse12 .cse12 .cse3 .cse3) (_ bv30 64))) (.cse4 (bvmul .cse12 .cse12 .cse12 .cse12)) (.cse5 (bvmul (bvmul .cse12 .cse12 .cse12 ULTIMATE.start_main_~y~0) (_ bv18446744073709551612 64))) (.cse20 (bvmul (bvmul .cse12 .cse3 .cse3 .cse3) (_ bv12 64))) (.cse8 (bvsle .cse22 (_ bv5 32))) (.cse14 (bvslt (bvadd .cse21 ULTIMATE.start_main_~c~0) .cse10)) (.cse11 (or .cse7 (= (_ bv0 32) ULTIMATE.start_assume_abort_if_not_~cond))) (.cse13 (= .cse3 (bvadd (bvmul ((_ sign_extend 32) (_ bv10 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg (bvmul ((_ sign_extend 32) (_ bv30 32)) ULTIMATE.start_main_~x~0)) (bvmul ((_ sign_extend 32) (_ bv15 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg ULTIMATE.start_main_~y~0))))) (or (and (= ULTIMATE.start_main_~x~0 (bvadd .cse0 .cse1 .cse2 .cse3 .cse4 .cse5)) .cse6 .cse7 .cse8 (bvslt .cse9 .cse10) .cse11 (= .cse3 (bvadd (bvmul .cse12 (_ bv18446744073709551614 64)) ULTIMATE.start_main_~y~0)) (= ULTIMATE.start_main_~c~0 (bvadd (bvmul .cse12 (_ bv2 64)) .cse3)) .cse13) (let ((.cse15 (bvadd (bvmul .cse12 (_ bv3 64)) .cse3))) (and .cse6 .cse7 .cse8 .cse14 (= .cse15 ULTIMATE.start_main_~c~0) (= .cse15 ULTIMATE.start_main_~y~0) .cse11 (= (bvadd .cse16 .cse17 .cse18 .cse19 .cse3 (bvmul .cse4 (_ bv17 64)) .cse20) ULTIMATE.start_main_~x~0) .cse13)) (and (= ULTIMATE.start_main_~x~0 (bvadd .cse16 .cse3)) .cse6 .cse7 .cse8 (= .cse3 (bvadd .cse21 ULTIMATE.start_main_~y~0)) (= .cse9 ULTIMATE.start_main_~c~0) (bvslt .cse3 .cse10) .cse11 .cse13) (and (= .cse3 (bvadd (bvmul .cse12 (_ bv18446744073709551611 64)) ULTIMATE.start_main_~c~0)) .cse6 .cse7 (= (bvadd (bvmul .cse12 (_ bv5 64)) .cse3) ULTIMATE.start_main_~y~0) (= (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ULTIMATE.start_main_~y~0 .cse10)) .cse11 .cse13) (and (bvsge .cse22 (_ bv0 32)) .cse6 .cse7 .cse8 (= .cse3 ULTIMATE.start_main_~x~0) (= .cse3 ULTIMATE.start_main_~y~0) (= .cse3 ULTIMATE.start_main_~c~0)) (let ((.cse23 (bvadd (bvmul .cse12 (_ bv4 64)) .cse3))) (and .cse6 .cse7 (= (bvadd .cse0 .cse1 .cse17 .cse2 .cse18 .cse19 .cse3 (bvmul .cse4 (_ bv18 64)) .cse5 .cse20) ULTIMATE.start_main_~x~0) .cse8 (= .cse23 ULTIMATE.start_main_~c~0) .cse14 (= .cse23 ULTIMATE.start_main_~y~0) .cse11 .cse13)))))) [2020-12-09 04:40:43,440 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2020-12-09 04:40:43,440 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-12-09 04:40:43,440 INFO L262 CegarLoopResult]: For program point L6-1(lines 6 8) no Hoare annotation was computed. [2020-12-09 04:40:43,441 INFO L258 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: (let ((.cse1 (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (.cse6 ((_ sign_extend 32) (_ bv0 32)))) (or (let ((.cse0 ((_ sign_extend 16) ULTIMATE.start_main_~k~0))) (let ((.cse5 ((_ sign_extend 32) .cse0))) (let ((.cse2 (bvmul ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (.cse3 (bvmul ULTIMATE.start_main_~y~0 .cse5))) (and (bvsge .cse0 (_ bv0 32)) .cse1 (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (bvsle .cse0 (_ bv5 32)) (= .cse2 .cse3) (let ((.cse4 ((_ sign_extend 32) (_ bv1 32)))) (or (bvslt (bvadd .cse4 ULTIMATE.start_main_~c~0) .cse5) (not (bvslt ULTIMATE.start_main_~c~0 .cse5)) (= (bvadd (bvmul .cse4 .cse4) .cse2 (bvmul (bvmul .cse4 ULTIMATE.start_main_~y~0) (_ bv2 64))) (bvadd (bvmul .cse4 .cse5) .cse3)))) (= .cse6 (bvadd (bvmul ((_ sign_extend 32) (_ bv10 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg (bvmul ((_ sign_extend 32) (_ bv30 32)) ULTIMATE.start_main_~x~0)) (bvmul ((_ sign_extend 32) (_ bv15 32)) ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (bvneg ULTIMATE.start_main_~y~0))))))) (and .cse1 (= .cse6 ULTIMATE.start_main_~x~0) (= .cse6 ULTIMATE.start_main_~y~0)))) [2020-12-09 04:40:43,441 INFO L262 CegarLoopResult]: For program point L10-6(lines 10 13) no Hoare annotation was computed. [2020-12-09 04:40:43,441 INFO L265 CegarLoopResult]: At program point L10-8(lines 9 15) the Hoare annotation is: true [2020-12-09 04:40:43,445 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:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 04:40:43,448 INFO L168 Benchmark]: Toolchain (without parser) took 806305.39 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 30.3 MB in the beginning and 24.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:43,448 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 34.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:40:43,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.48 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 30.1 MB in the beginning and 49.0 MB in the end (delta: -19.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:43,449 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 65.0 MB. Free memory was 48.8 MB in the beginning and 47.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:40:43,449 INFO L168 Benchmark]: Boogie Preprocessor took 27.03 ms. Allocated memory is still 65.0 MB. Free memory was 47.3 MB in the beginning and 46.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 04:40:43,449 INFO L168 Benchmark]: RCFGBuilder took 1833.16 ms. Allocated memory is still 65.0 MB. Free memory was 46.0 MB in the beginning and 47.5 MB in the end (delta: -1.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:43,450 INFO L168 Benchmark]: TraceAbstraction took 804207.77 ms. Allocated memory is still 65.0 MB. Free memory was 47.3 MB in the beginning and 24.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. [2020-12-09 04:40:43,452 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 52.4 MB. Free memory is still 34.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 197.48 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 30.1 MB in the beginning and 49.0 MB in the end (delta: -19.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.81 ms. Allocated memory is still 65.0 MB. Free memory was 48.8 MB in the beginning and 47.3 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.03 ms. Allocated memory is still 65.0 MB. Free memory was 47.3 MB in the beginning and 46.2 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1833.16 ms. Allocated memory is still 65.0 MB. Free memory was 46.0 MB in the beginning and 47.5 MB in the end (delta: -1.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 804207.77 ms. Allocated memory is still 65.0 MB. Free memory was 47.3 MB in the beginning and 24.9 MB in the end (delta: 22.4 MB). Peak memory consumption was 31.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 12]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - 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. Received shutdown request...