./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.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_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c -s /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 ec7c03a9b264b195185b80ba720b52d36833a06c .............................................................................................................................................................................................................................................................................................................................................. 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_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c -s /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 ec7c03a9b264b195185b80ba720b52d36833a06c .................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 15:55:24,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 15:55:24,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 15:55:24,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 15:55:24,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 15:55:24,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 15:55:24,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 15:55:24,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 15:55:24,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 15:55:24,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 15:55:24,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 15:55:24,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 15:55:24,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 15:55:24,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 15:55:24,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 15:55:24,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 15:55:24,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 15:55:24,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 15:55:24,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 15:55:24,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 15:55:24,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 15:55:24,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 15:55:24,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 15:55:24,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 15:55:24,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 15:55:24,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 15:55:24,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 15:55:24,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 15:55:24,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 15:55:24,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 15:55:24,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 15:55:24,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 15:55:24,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 15:55:24,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 15:55:24,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 15:55:24,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 15:55:24,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 15:55:24,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 15:55:24,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 15:55:24,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 15:55:24,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 15:55:24,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 15:55:24,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 15:55:24,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 15:55:24,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 15:55:24,240 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 15:55:24,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 15:55:24,240 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 15:55:24,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 15:55:24,240 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 15:55:24,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 15:55:24,240 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 15:55:24,240 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 15:55:24,240 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 15:55:24,241 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 15:55:24,241 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 15:55:24,241 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 15:55:24,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 15:55:24,241 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 15:55:24,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 15:55:24,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 15:55:24,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 15:55:24,242 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 15:55:24,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 15:55:24,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 15:55:24,242 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 15:55:24,242 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 15:55:24,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 15:55:24,243 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 15:55:24,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 15:55:24,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 15:55:24,243 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 15:55:24,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:55:24,243 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 15:55:24,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 15:55:24,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 15:55:24,243 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 15:55:24,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 15:55:24,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 15:55:24,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 15:55:24,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 15:55:24,244 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_71a14a7d-fbcd-4708-896c-a3677f7586c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec7c03a9b264b195185b80ba720b52d36833a06c [2020-12-09 15:55:24,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 15:55:24,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 15:55:24,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 15:55:24,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 15:55:24,448 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 15:55:24,449 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c [2020-12-09 15:55:24,489 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data/71f76a20a/a78c23a722c348f28550a9350f8d1eee/FLAGcfe7309bd [2020-12-09 15:55:24,862 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 15:55:24,863 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c [2020-12-09 15:55:24,867 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data/71f76a20a/a78c23a722c348f28550a9350f8d1eee/FLAGcfe7309bd [2020-12-09 15:55:24,876 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data/71f76a20a/a78c23a722c348f28550a9350f8d1eee [2020-12-09 15:55:24,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 15:55:24,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 15:55:24,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 15:55:24,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 15:55:24,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 15:55:24,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:55:24" (1/1) ... [2020-12-09 15:55:24,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2328afce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:24, skipping insertion in model container [2020-12-09 15:55:24,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:55:24" (1/1) ... [2020-12-09 15:55:24,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 15:55:24,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 15:55:24,992 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_71a14a7d-fbcd-4708-896c-a3677f7586c3/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c[458,471] [2020-12-09 15:55:25,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:55:25,008 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 15:55:25,017 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_71a14a7d-fbcd-4708-896c-a3677f7586c3/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c[458,471] [2020-12-09 15:55:25,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:55:25,031 INFO L208 MainTranslator]: Completed translation [2020-12-09 15:55:25,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25 WrapperNode [2020-12-09 15:55:25,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 15:55:25,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 15:55:25,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 15:55:25,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 15:55:25,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... [2020-12-09 15:55:25,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... [2020-12-09 15:55:25,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 15:55:25,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 15:55:25,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 15:55:25,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 15:55:25,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... [2020-12-09 15:55:25,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... [2020-12-09 15:55:25,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... [2020-12-09 15:55:25,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... [2020-12-09 15:55:25,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... [2020-12-09 15:55:25,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... [2020-12-09 15:55:25,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... [2020-12-09 15:55:25,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 15:55:25,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 15:55:25,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 15:55:25,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 15:55:25,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 15:55:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 15:55:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 15:55:25,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 15:55:25,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 15:55:25,322 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 15:55:25,322 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-09 15:55:25,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:55:25 BoogieIcfgContainer [2020-12-09 15:55:25,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 15:55:25,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 15:55:25,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 15:55:25,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 15:55:25,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:55:24" (1/3) ... [2020-12-09 15:55:25,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343c6099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:55:25, skipping insertion in model container [2020-12-09 15:55:25,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:25" (2/3) ... [2020-12-09 15:55:25,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343c6099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:55:25, skipping insertion in model container [2020-12-09 15:55:25,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:55:25" (3/3) ... [2020-12-09 15:55:25,330 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound20.c [2020-12-09 15:55:25,339 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 15:55:25,341 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 15:55:25,349 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 15:55:25,364 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 15:55:25,364 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 15:55:25,365 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 15:55:25,365 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 15:55:25,365 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 15:55:25,365 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 15:55:25,365 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 15:55:25,365 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 15:55:25,374 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-12-09 15:55:25,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 15:55:25,377 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:55:25,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 15:55:25,377 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:55:25,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:55:25,381 INFO L82 PathProgramCache]: Analyzing trace with hash 2639580, now seen corresponding path program 1 times [2020-12-09 15:55:25,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:55:25,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102035590] [2020-12-09 15:55:25,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:55:25,453 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 15:55:25,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699285000] [2020-12-09 15:55:25,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 15:55:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:55:25,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 15:55:25,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:55:25,576 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 15:55:25,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 15:55:25,599 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 15:55:25,599 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102035590] [2020-12-09 15:55:25,600 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 15:55:25,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699285000] [2020-12-09 15:55:25,600 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:55:25,600 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 15:55:25,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802693639] [2020-12-09 15:55:25,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 15:55:25,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 15:55:25,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 15:55:25,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 15:55:25,620 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2020-12-09 15:55:29,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:55:29,723 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2020-12-09 15:55:29,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 15:55:29,724 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-09 15:55:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:55:29,729 INFO L225 Difference]: With dead ends: 38 [2020-12-09 15:55:29,729 INFO L226 Difference]: Without dead ends: 17 [2020-12-09 15:55:29,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-09 15:55:29,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-09 15:55:29,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-12-09 15:55:29,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 15:55:29,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-09 15:55:29,753 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2020-12-09 15:55:29,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:55:29,754 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-09 15:55:29,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 15:55:29,754 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-09 15:55:29,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 15:55:29,754 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:55:29,754 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-12-09 15:55:29,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 15:55:29,957 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:55:29,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:55:29,959 INFO L82 PathProgramCache]: Analyzing trace with hash -456145028, now seen corresponding path program 1 times [2020-12-09 15:55:29,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 15:55:29,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256129701] [2020-12-09 15:55:29,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 15:55:29,997 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 15:55:29,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600072851] [2020-12-09 15:55:29,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 15:55:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:55:30,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 28 conjunts are in the unsatisfiable core [2020-12-09 15:55:30,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:55:30,122 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 15:55:30,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 15:55:30,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256129701] [2020-12-09 15:55:30,143 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 15:55:30,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600072851] [2020-12-09 15:55:30,143 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-12-09 15:55:30,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1833924531] [2020-12-09 15:55:30,158 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2020-12-09 15:55:30,158 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 15:55:30,161 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 15:55:30,165 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 15:55:30,165 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 15:55:30,223 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-09 15:55:30,229 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-12-09 15:55:30,488 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 15:55:33,152 WARN L197 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2020-12-09 15:55:41,522 WARN L197 SmtUtils]: Spent 8.26 s on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2020-12-09 15:55:41,657 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2020-12-09 15:55:41,658 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 15:55:41,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:55:41,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2020-12-09 15:55:41,658 ERROR L205 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2020-12-09 15:55:41,659 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 15:55:41,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 15:55:41,874 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 15:55:41,874 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-12-09 15:55:41,897 WARN L254 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-12-09 15:55:41,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:55:41 BoogieIcfgContainer [2020-12-09 15:55:41,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 15:55:41,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 15:55:41,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 15:55:41,899 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 15:55:41,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:55:25" (3/4) ... [2020-12-09 15:55:41,904 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 15:55:41,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 15:55:41,906 INFO L168 Benchmark]: Toolchain (without parser) took 17025.37 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 60.3 MB in the beginning and 68.6 MB in the end (delta: -8.2 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2020-12-09 15:55:41,906 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 67.1 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:55:41,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.53 ms. Allocated memory is still 81.8 MB. Free memory was 60.0 MB in the beginning and 50.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 15:55:41,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.13 ms. Allocated memory is still 81.8 MB. Free memory was 50.3 MB in the beginning and 48.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:55:41,908 INFO L168 Benchmark]: Boogie Preprocessor took 14.55 ms. Allocated memory is still 81.8 MB. Free memory was 48.7 MB in the beginning and 47.8 MB in the end (delta: 932.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 15:55:41,909 INFO L168 Benchmark]: RCFGBuilder took 253.12 ms. Allocated memory is still 81.8 MB. Free memory was 47.8 MB in the beginning and 50.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 15:55:41,910 INFO L168 Benchmark]: TraceAbstraction took 16573.05 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 50.2 MB in the beginning and 69.4 MB in the end (delta: -19.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:55:41,910 INFO L168 Benchmark]: Witness Printer took 5.18 ms. Allocated memory is still 98.6 MB. Free memory was 69.4 MB in the beginning and 68.6 MB in the end (delta: 868.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:55:41,914 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 67.1 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 151.53 ms. Allocated memory is still 81.8 MB. Free memory was 60.0 MB in the beginning and 50.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 23.13 ms. Allocated memory is still 81.8 MB. Free memory was 50.3 MB in the beginning and 48.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.55 ms. Allocated memory is still 81.8 MB. Free memory was 48.7 MB in the beginning and 47.8 MB in the end (delta: 932.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 253.12 ms. Allocated memory is still 81.8 MB. Free memory was 47.8 MB in the beginning and 50.7 MB in the end (delta: -2.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16573.05 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 50.2 MB in the beginning and 69.4 MB in the end (delta: -19.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.18 ms. Allocated memory is still 98.6 MB. Free memory was 69.4 MB in the beginning and 68.6 MB in the end (delta: 868.4 kB). 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 [L23] y = 0 [L24] x = 0 [L25] c = 0 [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y + x [L27] COND TRUE 1 [L10] COND FALSE !(!(cond)) [L30] COND FALSE !(!(c < k)) [L33] c = c + 1 [L34] y = y + 1 [L35] x = y * y + x [L27] COND TRUE 1 [L10] COND TRUE !(cond) [L12] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 16.5s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 28 SDslu, 20 SDs, 0 SdLazy, 19 SolverSat, 17 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 1 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, 99 SizeOfPredicates, 6 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 15 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 15:55:43,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 15:55:43,453 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 15:55:43,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-12-09 15:55:43,492 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 15:55:43,493 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 15:55:43,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 15:55:43,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 15:55:43,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 15:55:43,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 15:55:43,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 15:55:43,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 15:55:43,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 15:55:43,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 15:55:43,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 15:55:43,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 15:55:43,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 15:55:43,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 15:55:43,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 15:55:43,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 15:55:43,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 15:55:43,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 15:55:43,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 15:55:43,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 15:55:43,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 15:55:43,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 15:55:43,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 15:55:43,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 15:55:43,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 15:55:43,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 15:55:43,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 15:55:43,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 15:55:43,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 15:55:43,516 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 15:55:43,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 15:55:43,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 15:55:43,536 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 15:55:43,536 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 15:55:43,537 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 15:55:43,537 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 15:55:43,537 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 15:55:43,537 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 15:55:43,537 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 15:55:43,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 15:55:43,538 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 15:55:43,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 15:55:43,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 15:55:43,538 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 15:55:43,538 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 15:55:43,538 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 15:55:43,539 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 15:55:43,539 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 15:55:43,539 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 15:55:43,539 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 15:55:43,539 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 15:55:43,539 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 15:55:43,539 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 15:55:43,539 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 15:55:43,539 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 15:55:43,540 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 15:55:43,540 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 15:55:43,540 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 15:55:43,540 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 15:55:43,540 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 15:55:43,540 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 15:55:43,540 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 15:55:43,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 15:55:43,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 15:55:43,541 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 15:55:43,541 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_71a14a7d-fbcd-4708-896c-a3677f7586c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec7c03a9b264b195185b80ba720b52d36833a06c [2020-12-09 15:55:43,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 15:55:43,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 15:55:43,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 15:55:43,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 15:55:43,808 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 15:55:43,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c [2020-12-09 15:55:43,852 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data/b6650bc28/b835e496505145709938c61e41557e95/FLAG423b95775 [2020-12-09 15:55:44,280 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 15:55:44,280 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c [2020-12-09 15:55:44,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data/b6650bc28/b835e496505145709938c61e41557e95/FLAG423b95775 [2020-12-09 15:55:44,300 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/bin/utaipan/data/b6650bc28/b835e496505145709938c61e41557e95 [2020-12-09 15:55:44,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 15:55:44,303 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 15:55:44,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 15:55:44,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 15:55:44,307 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 15:55:44,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5648b864 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44, skipping insertion in model container [2020-12-09 15:55:44,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 15:55:44,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 15:55:44,415 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_71a14a7d-fbcd-4708-896c-a3677f7586c3/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c[458,471] [2020-12-09 15:55:44,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:55:44,435 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 15:55:44,447 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_71a14a7d-fbcd-4708-896c-a3677f7586c3/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound20.c[458,471] [2020-12-09 15:55:44,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 15:55:44,472 INFO L208 MainTranslator]: Completed translation [2020-12-09 15:55:44,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44 WrapperNode [2020-12-09 15:55:44,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 15:55:44,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 15:55:44,476 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 15:55:44,477 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 15:55:44,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 15:55:44,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 15:55:44,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 15:55:44,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 15:55:44,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... [2020-12-09 15:55:44,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 15:55:44,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 15:55:44,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 15:55:44,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 15:55:44,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 15:55:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 15:55:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 15:55:44,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 15:55:44,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 15:55:45,036 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 15:55:45,036 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2020-12-09 15:55:45,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:55:45 BoogieIcfgContainer [2020-12-09 15:55:45,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 15:55:45,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 15:55:45,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 15:55:45,040 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 15:55:45,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:55:44" (1/3) ... [2020-12-09 15:55:45,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16071a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:55:45, skipping insertion in model container [2020-12-09 15:55:45,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:55:44" (2/3) ... [2020-12-09 15:55:45,042 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16071a26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:55:45, skipping insertion in model container [2020-12-09 15:55:45,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:55:45" (3/3) ... [2020-12-09 15:55:45,043 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound20.c [2020-12-09 15:55:45,052 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 15:55:45,055 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 15:55:45,062 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 15:55:45,079 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 15:55:45,079 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 15:55:45,079 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 15:55:45,079 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 15:55:45,079 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 15:55:45,079 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 15:55:45,079 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 15:55:45,079 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 15:55:45,088 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-12-09 15:55:45,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 15:55:45,091 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:55:45,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:55:45,092 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:55:45,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:55:45,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2020-12-09 15:55:45,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:55:45,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1284073479] [2020-12-09 15:55:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 15:55:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:55:45,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 15:55:45,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:55:45,250 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 15:55:45,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:55:45,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1284073479] [2020-12-09 15:55:45,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:55:45,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 15:55:45,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623877502] [2020-12-09 15:55:45,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 15:55:45,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:55:45,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 15:55:45,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 15:55:45,272 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2020-12-09 15:55:45,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:55:45,287 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2020-12-09 15:55:45,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 15:55:45,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-12-09 15:55:45,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:55:45,296 INFO L225 Difference]: With dead ends: 31 [2020-12-09 15:55:45,296 INFO L226 Difference]: Without dead ends: 13 [2020-12-09 15:55:45,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 15:55:45,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-12-09 15:55:45,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-12-09 15:55:45,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-12-09 15:55:45,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-12-09 15:55:45,326 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2020-12-09 15:55:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:55:45,327 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-12-09 15:55:45,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 15:55:45,327 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-12-09 15:55:45,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 15:55:45,328 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:55:45,328 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:55:45,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 15:55:45,529 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:55:45,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:55:45,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2020-12-09 15:55:45,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:55:45,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872839217] [2020-12-09 15:55:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 15:55:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:55:45,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 15:55:45,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:55:45,700 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 15:55:45,701 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 15:55:45,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [872839217] [2020-12-09 15:55:45,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 15:55:45,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 15:55:45,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010269034] [2020-12-09 15:55:45,702 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 15:55:45,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:55:45,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 15:55:45,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 15:55:45,703 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 4 states. [2020-12-09 15:55:46,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:55:46,513 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-12-09 15:55:46,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 15:55:46,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-09 15:55:46,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:55:46,514 INFO L225 Difference]: With dead ends: 23 [2020-12-09 15:55:46,514 INFO L226 Difference]: Without dead ends: 17 [2020-12-09 15:55:46,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 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 15:55:46,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-09 15:55:46,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-12-09 15:55:46,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-09 15:55:46,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-09 15:55:46,519 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2020-12-09 15:55:46,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:55:46,519 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-09 15:55:46,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 15:55:46,519 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-09 15:55:46,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 15:55:46,520 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 15:55:46,520 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 15:55:46,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 15:55:46,722 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 15:55:46,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 15:55:46,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1864186656, now seen corresponding path program 1 times [2020-12-09 15:55:46,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 15:55:46,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [465105000] [2020-12-09 15:55:46,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 15:55:46,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:55:46,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 15:55:46,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:55:47,141 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 15:55:47,141 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 15:55:48,285 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-12-09 15:55:49,019 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 15:55:49,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [465105000] [2020-12-09 15:55:49,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [192369394] [2020-12-09 15:55:49,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 15:55:49,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:55:49,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 15:55:49,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:55:49,382 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 15:55:49,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 15:55:50,253 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 15:55:50,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043344518] [2020-12-09 15:55:50,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_71a14a7d-fbcd-4708-896c-a3677f7586c3/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 15:55:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 15:55:50,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2020-12-09 15:55:50,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 15:55:50,748 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 15:55:50,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 15:55:51,704 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 15:55:51,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 15:55:51,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5, 4, 6, 4] total 8 [2020-12-09 15:55:51,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853225566] [2020-12-09 15:55:51,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-09 15:55:51,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 15:55:51,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-09 15:55:51,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-09 15:55:51,706 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2020-12-09 15:55:52,454 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 15:55:54,476 WARN L197 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 31 [2020-12-09 15:55:55,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 15:55:55,109 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-12-09 15:55:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 15:55:55,109 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-12-09 15:55:55,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 15:55:55,110 INFO L225 Difference]: With dead ends: 21 [2020-12-09 15:55:55,110 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 15:55:55,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 7 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-12-09 15:55:55,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 15:55:55,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 15:55:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 15:55:55,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 15:55:55,111 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-12-09 15:55:55,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 15:55:55,111 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 15:55:55,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-09 15:55:55,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 15:55:55,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 15:55:55,713 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 15:55:55,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 15:55:58,654 WARN L197 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2020-12-09 15:56:00,882 WARN L197 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2020-12-09 15:56:00,884 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 15:56:00,884 INFO L258 CegarLoopResult]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv0 32))) (.cse1 (or (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= (_ bv0 32) ULTIMATE.start_assume_abort_if_not_~cond)))) (or (and (= .cse0 ULTIMATE.start_main_~x~0) .cse1 (= .cse0 ULTIMATE.start_main_~y~0)) (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= .cse0 (bvadd (bvneg (bvmul (bvmul ((_ sign_extend 32) (_ bv3 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~x~0) (bvneg (bvmul (bvmul (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvneg ULTIMATE.start_main_~y~0))) .cse1))) [2020-12-09 15:56:00,884 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 15:56:00,884 INFO L262 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2020-12-09 15:56:00,885 INFO L262 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-12-09 15:56:00,885 INFO L262 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-12-09 15:56:00,885 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-12-09 15:56:00,885 INFO L265 CegarLoopResult]: At program point L38(lines 17 39) the Hoare annotation is: true [2020-12-09 15:56:00,885 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 15:56:00,885 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 15:56:00,885 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 15:56:00,885 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-09 15:56:00,885 INFO L262 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-12-09 15:56:00,886 INFO L258 CegarLoopResult]: At program point L10-2(lines 30 31) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= ((_ sign_extend 32) (_ bv0 32)) (bvadd (bvneg (bvmul (bvmul ((_ sign_extend 32) (_ bv3 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvmul ((_ sign_extend 32) (_ bv6 32)) ULTIMATE.start_main_~x~0) (bvneg (bvmul (bvmul (bvmul ((_ sign_extend 32) (_ bv2 32)) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~y~0)) (bvneg ULTIMATE.start_main_~y~0))) (or (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= (_ bv0 32) ULTIMATE.start_assume_abort_if_not_~cond))) [2020-12-09 15:56:00,886 INFO L262 CegarLoopResult]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2020-12-09 15:56:00,886 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-12-09 15:56:00,886 INFO L265 CegarLoopResult]: At program point L10-5(lines 9 15) the Hoare annotation is: true [2020-12-09 15:56:00,891 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.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 15:56:00,894 INFO L168 Benchmark]: Toolchain (without parser) took 16590.02 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 57.8 MB in the beginning and 35.8 MB in the end (delta: 22.1 MB). Peak memory consumption was 36.7 MB. Max. memory is 16.1 GB. [2020-12-09 15:56:00,894 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 73.4 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:56:00,895 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.47 ms. Allocated memory is still 73.4 MB. Free memory was 57.8 MB in the beginning and 56.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-12-09 15:56:00,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.91 ms. Allocated memory is still 73.4 MB. Free memory was 56.8 MB in the beginning and 55.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:56:00,896 INFO L168 Benchmark]: Boogie Preprocessor took 24.37 ms. Allocated memory is still 73.4 MB. Free memory was 55.1 MB in the beginning and 54.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 15:56:00,896 INFO L168 Benchmark]: RCFGBuilder took 502.27 ms. Allocated memory is still 73.4 MB. Free memory was 54.1 MB in the beginning and 41.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 15:56:00,897 INFO L168 Benchmark]: TraceAbstraction took 15854.61 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 40.7 MB in the beginning and 35.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 16.1 GB. [2020-12-09 15:56:00,899 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 73.4 MB. Free memory is still 55.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 168.47 ms. Allocated memory is still 73.4 MB. Free memory was 57.8 MB in the beginning and 56.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.91 ms. Allocated memory is still 73.4 MB. Free memory was 56.8 MB in the beginning and 55.1 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.37 ms. Allocated memory is still 73.4 MB. Free memory was 55.1 MB in the beginning and 54.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 502.27 ms. Allocated memory is still 73.4 MB. Free memory was 54.1 MB in the beginning and 41.1 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 15854.61 ms. Allocated memory was 73.4 MB in the beginning and 88.1 MB in the end (delta: 14.7 MB). Free memory was 40.7 MB in the beginning and 35.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 21.3 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - 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...