./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2ed99b30ac1df5d31daa869d277589d2838cb93 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e2ed99b30ac1df5d31daa869d277589d2838cb93 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:01:25,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:01:25,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:01:25,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:01:25,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:01:25,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:01:25,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:01:25,235 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:01:25,237 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:01:25,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:01:25,240 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:01:25,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:01:25,242 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:01:25,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:01:25,245 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:01:25,247 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:01:25,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:01:25,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:01:25,253 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:01:25,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:01:25,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:01:25,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:01:25,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:01:25,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:01:25,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:01:25,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:01:25,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:01:25,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:01:25,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:01:25,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:01:25,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:01:25,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:01:25,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:01:25,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:01:25,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:01:25,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:01:25,293 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:01:25,293 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:01:25,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:01:25,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:01:25,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:01:25,297 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:01:25,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:01:25,357 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:01:25,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:01:25,359 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:01:25,360 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:01:25,360 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:01:25,360 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:01:25,361 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:01:25,366 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:01:25,366 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:01:25,366 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:01:25,367 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:01:25,367 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:01:25,367 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:01:25,367 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:01:25,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:01:25,369 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:01:25,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:01:25,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:01:25,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:01:25,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:01:25,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:01:25,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:01:25,370 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:01:25,370 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:01:25,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:01:25,371 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:01:25,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:01:25,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:01:25,372 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:01:25,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:01:25,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:01:25,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:01:25,373 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:01:25,373 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:01:25,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:01:25,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:01:25,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:01:25,374 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:01:25,375 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2ed99b30ac1df5d31daa869d277589d2838cb93 [2021-10-13 08:01:25,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:01:25,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:01:25,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:01:25,757 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:01:25,759 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:01:25,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-10-13 08:01:25,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data/6750d93c1/1ffe73c1ae8e4387a896929c245ffc46/FLAGed665af49 [2021-10-13 08:01:26,356 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:01:26,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-10-13 08:01:26,364 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data/6750d93c1/1ffe73c1ae8e4387a896929c245ffc46/FLAGed665af49 [2021-10-13 08:01:26,751 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data/6750d93c1/1ffe73c1ae8e4387a896929c245ffc46 [2021-10-13 08:01:26,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:01:26,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:01:26,763 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:01:26,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:01:26,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:01:26,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:01:26" (1/1) ... [2021-10-13 08:01:26,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e3779db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:26, skipping insertion in model container [2021-10-13 08:01:26,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:01:26" (1/1) ... [2021-10-13 08:01:26,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:01:26,805 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:01:27,084 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-10-13 08:01:27,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:01:27,116 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:01:27,134 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-10-13 08:01:27,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:01:27,175 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:01:27,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27 WrapperNode [2021-10-13 08:01:27,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:01:27,178 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:01:27,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:01:27,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:01:27,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:01:27,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:01:27,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:01:27,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:01:27,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,248 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:01:27,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:01:27,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:01:27,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:01:27,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (1/1) ... [2021-10-13 08:01:27,267 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:01:27,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:01:27,295 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:01:27,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:01:27,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 08:01:27,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:01:27,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:01:27,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:01:27,646 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:01:27,646 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-13 08:01:27,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:01:27 BoogieIcfgContainer [2021-10-13 08:01:27,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:01:27,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:01:27,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:01:27,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:01:27,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:01:26" (1/3) ... [2021-10-13 08:01:27,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9c1540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:01:27, skipping insertion in model container [2021-10-13 08:01:27,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:27" (2/3) ... [2021-10-13 08:01:27,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f9c1540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:01:27, skipping insertion in model container [2021-10-13 08:01:27,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:01:27" (3/3) ... [2021-10-13 08:01:27,659 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound10.c [2021-10-13 08:01:27,665 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:01:27,666 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 08:01:27,722 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:01:27,730 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 08:01:27,731 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 08:01:27,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 08:01:27,753 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:27,754 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 08:01:27,755 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:01:27,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:27,761 INFO L82 PathProgramCache]: Analyzing trace with hash 3950384, now seen corresponding path program 1 times [2021-10-13 08:01:27,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:01:27,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378450490] [2021-10-13 08:01:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:27,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:01:27,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:28,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:28,070 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:01:28,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378450490] [2021-10-13 08:01:28,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378450490] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:01:28,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:01:28,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 08:01:28,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569831934] [2021-10-13 08:01:28,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:01:28,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:01:28,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:01:28,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 08:01:28,119 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 27 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:28,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:28,365 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions. [2021-10-13 08:01:28,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 08:01:28,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-13 08:01:28,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:28,379 INFO L225 Difference]: With dead ends: 78 [2021-10-13 08:01:28,379 INFO L226 Difference]: Without dead ends: 47 [2021-10-13 08:01:28,386 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:01:28,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-13 08:01:28,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2021-10-13 08:01:28,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 34 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:28,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2021-10-13 08:01:28,438 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 4 [2021-10-13 08:01:28,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:28,439 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-13 08:01:28,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:28,439 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2021-10-13 08:01:28,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 08:01:28,440 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:28,441 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-13 08:01:28,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 08:01:28,442 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:01:28,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:28,448 INFO L82 PathProgramCache]: Analyzing trace with hash -498492525, now seen corresponding path program 1 times [2021-10-13 08:01:28,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:01:28,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217512751] [2021-10-13 08:01:28,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:28,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:01:28,503 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 08:01:28,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857560635] [2021-10-13 08:01:28,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:28,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:01:28,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:01:28,511 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:01:28,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 08:01:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:28,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:01:28,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:28,757 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:28,820 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:01:28,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217512751] [2021-10-13 08:01:28,820 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 08:01:28,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1857560635] [2021-10-13 08:01:28,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1857560635] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:01:28,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:01:28,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:01:28,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739578198] [2021-10-13 08:01:28,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 08:01:28,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:01:28,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 08:01:28,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:01:28,825 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:28,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:28,979 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-13 08:01:28,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:01:28,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-13 08:01:28,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:28,981 INFO L225 Difference]: With dead ends: 47 [2021-10-13 08:01:28,981 INFO L226 Difference]: Without dead ends: 43 [2021-10-13 08:01:28,982 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:01:28,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-13 08:01:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2021-10-13 08:01:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 36 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:28,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-10-13 08:01:28,991 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 6 [2021-10-13 08:01:28,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:28,992 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-10-13 08:01:28,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:28,993 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-10-13 08:01:28,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 08:01:28,995 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:28,996 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:29,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:29,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-13 08:01:29,223 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:01:29,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:29,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1985176726, now seen corresponding path program 1 times [2021-10-13 08:01:29,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:01:29,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764084728] [2021-10-13 08:01:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:29,225 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:01:29,243 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 08:01:29,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543433444] [2021-10-13 08:01:29,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:29,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:01:29,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:01:29,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:01:29,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-13 08:01:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:29,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-13 08:01:29,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:29,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:29,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:29,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:29,502 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:01:29,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764084728] [2021-10-13 08:01:29,502 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 08:01:29,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543433444] [2021-10-13 08:01:29,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543433444] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:01:29,508 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:01:29,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-13 08:01:29,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972629858] [2021-10-13 08:01:29,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 08:01:29,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:01:29,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 08:01:29,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 08:01:29,511 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:33,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:33,318 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2021-10-13 08:01:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 08:01:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-13 08:01:33,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:33,319 INFO L225 Difference]: With dead ends: 65 [2021-10-13 08:01:33,320 INFO L226 Difference]: Without dead ends: 53 [2021-10-13 08:01:33,320 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 35.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-13 08:01:33,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-10-13 08:01:33,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2021-10-13 08:01:33,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 38 states have (on average 1.263157894736842) internal successors, (48), 43 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:33,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2021-10-13 08:01:33,327 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 8 [2021-10-13 08:01:33,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:33,328 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2021-10-13 08:01:33,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:33,328 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2021-10-13 08:01:33,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 08:01:33,329 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:33,329 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:33,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:33,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:01:33,549 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:01:33,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:33,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1294888167, now seen corresponding path program 1 times [2021-10-13 08:01:33,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:01:33,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705854064] [2021-10-13 08:01:33,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:33,551 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:01:33,570 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-13 08:01:33,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [349025890] [2021-10-13 08:01:33,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:33,573 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:01:33,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:01:33,574 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:01:33,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-13 08:01:33,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:33,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 08:01:33,666 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:33,775 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:33,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:33,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 08:01:33,841 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:01:33,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705854064] [2021-10-13 08:01:33,842 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-13 08:01:33,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [349025890] [2021-10-13 08:01:33,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [349025890] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:01:33,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1163225844] [2021-10-13 08:01:33,871 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-13 08:01:33,871 INFO L166 IcfgInterpreter]: Building call graph [2021-10-13 08:01:33,878 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-13 08:01:33,886 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-13 08:01:33,887 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-13 08:01:33,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:33,947 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 08:01:33,948 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:33,948 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-13 08:01:33,953 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-13 08:01:33,954 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:33,955 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-13 08:01:33,960 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-13 08:01:34,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:01:34,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:01:34,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-13 08:01:34,084 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-13 08:01:34,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-13 08:01:34,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:34,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 08:01:34,091 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:34,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-13 08:01:34,093 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-13 08:01:34,100 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 08:01:34,101 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 08:01:34,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:34,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 08:01:34,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:34,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 08:01:34,104 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-13 08:01:34,109 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 08:01:34,110 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-13 08:01:34,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:34,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 08:01:34,112 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:34,112 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-13 08:01:34,113 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-13 08:01:34,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:01:34,178 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-13 08:01:34,183 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.0 percent of original size [2021-10-13 08:01:34,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-13 08:01:34,187 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-13 08:01:34,188 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:444, output treesize:125 [2021-10-13 08:01:34,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:34,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:01:34,415 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_17| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 08:01:34,419 INFO L168 Benchmark]: Toolchain (without parser) took 7660.34 ms. Allocated memory is still 127.9 MB. Free memory was 88.9 MB in the beginning and 46.2 MB in the end (delta: 42.7 MB). Peak memory consumption was 40.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:34,419 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 127.9 MB. Free memory is still 105.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:01:34,420 INFO L168 Benchmark]: CACSL2BoogieTranslator took 413.33 ms. Allocated memory is still 127.9 MB. Free memory was 88.8 MB in the beginning and 103.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:34,420 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.16 ms. Allocated memory is still 127.9 MB. Free memory was 103.1 MB in the beginning and 101.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:34,421 INFO L168 Benchmark]: Boogie Preprocessor took 29.25 ms. Allocated memory is still 127.9 MB. Free memory was 101.8 MB in the beginning and 100.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:01:34,421 INFO L168 Benchmark]: RCFGBuilder took 392.34 ms. Allocated memory is still 127.9 MB. Free memory was 100.2 MB in the beginning and 87.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:34,431 INFO L168 Benchmark]: TraceAbstraction took 6766.57 ms. Allocated memory is still 127.9 MB. Free memory was 87.1 MB in the beginning and 46.2 MB in the end (delta: 40.8 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:01:34,434 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 127.9 MB. Free memory is still 105.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 413.33 ms. Allocated memory is still 127.9 MB. Free memory was 88.8 MB in the beginning and 103.1 MB in the end (delta: -14.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.16 ms. Allocated memory is still 127.9 MB. Free memory was 103.1 MB in the beginning and 101.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.25 ms. Allocated memory is still 127.9 MB. Free memory was 101.8 MB in the beginning and 100.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 392.34 ms. Allocated memory is still 127.9 MB. Free memory was 100.2 MB in the beginning and 87.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6766.57 ms. Allocated memory is still 127.9 MB. Free memory was 87.1 MB in the beginning and 46.2 MB in the end (delta: 40.8 MB). Peak memory consumption was 40.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_17| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_17|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 08:01:34,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:01:37,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:01:37,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:01:37,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:01:37,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:01:37,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:01:37,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:01:37,454 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:01:37,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:01:37,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:01:37,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:01:37,462 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:01:37,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:01:37,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:01:37,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:01:37,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:01:37,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:01:37,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:01:37,476 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:01:37,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:01:37,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:01:37,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:01:37,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:01:37,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:01:37,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:01:37,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:01:37,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:01:37,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:01:37,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:01:37,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:01:37,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:01:37,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:01:37,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:01:37,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:01:37,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:01:37,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:01:37,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:01:37,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:01:37,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:01:37,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:01:37,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:01:37,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 08:01:37,542 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:01:37,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:01:37,544 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:01:37,544 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:01:37,545 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:01:37,545 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:01:37,545 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:01:37,545 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:01:37,546 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:01:37,547 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:01:37,547 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:01:37,547 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:01:37,548 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:01:37,548 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:01:37,548 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:01:37,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:01:37,549 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:01:37,549 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 08:01:37,549 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 08:01:37,549 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:01:37,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:01:37,550 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:01:37,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:01:37,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:01:37,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 08:01:37,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:01:37,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:01:37,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:01:37,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:01:37,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:01:37,553 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 08:01:37,553 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 08:01:37,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:01:37,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:01:37,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:01:37,554 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2ed99b30ac1df5d31daa869d277589d2838cb93 [2021-10-13 08:01:38,027 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:01:38,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:01:38,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:01:38,058 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:01:38,059 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:01:38,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-10-13 08:01:38,136 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data/efe22a126/9566d7a881cb492983d5feedac8e6b92/FLAG6ce4e8664 [2021-10-13 08:01:38,694 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:01:38,696 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c [2021-10-13 08:01:38,705 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data/efe22a126/9566d7a881cb492983d5feedac8e6b92/FLAG6ce4e8664 [2021-10-13 08:01:38,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/data/efe22a126/9566d7a881cb492983d5feedac8e6b92 [2021-10-13 08:01:39,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:01:39,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:01:39,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:01:39,012 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:01:39,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:01:39,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:01:38" (1/1) ... [2021-10-13 08:01:39,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463d2743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39, skipping insertion in model container [2021-10-13 08:01:39,030 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:01:38" (1/1) ... [2021-10-13 08:01:39,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:01:39,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:01:39,278 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-10-13 08:01:39,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:01:39,331 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:01:39,350 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound10.c[520,533] [2021-10-13 08:01:39,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:01:39,413 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:01:39,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39 WrapperNode [2021-10-13 08:01:39,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:01:39,417 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:01:39,418 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:01:39,418 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:01:39,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:01:39,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:01:39,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:01:39,513 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:01:39,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,552 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:01:39,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:01:39,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:01:39,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:01:39,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (1/1) ... [2021-10-13 08:01:39,586 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:01:39,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:01:39,614 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:01:39,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:01:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 08:01:39,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:01:39,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:01:39,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:01:40,438 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:01:40,439 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-13 08:01:40,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:01:40 BoogieIcfgContainer [2021-10-13 08:01:40,441 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:01:40,443 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:01:40,443 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:01:40,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:01:40,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:01:38" (1/3) ... [2021-10-13 08:01:40,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed43691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:01:40, skipping insertion in model container [2021-10-13 08:01:40,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:01:39" (2/3) ... [2021-10-13 08:01:40,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed43691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:01:40, skipping insertion in model container [2021-10-13 08:01:40,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:01:40" (3/3) ... [2021-10-13 08:01:40,450 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound10.c [2021-10-13 08:01:40,456 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:01:40,456 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-13 08:01:40,509 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:01:40,516 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 08:01:40,516 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-13 08:01:40,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:40,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 08:01:40,565 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:40,565 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:40,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:01:40,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:40,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-13 08:01:40,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:01:40,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146081032] [2021-10-13 08:01:40,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:40,617 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:01:40,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:01:40,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:01:40,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 08:01:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:40,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 08:01:40,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:40,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:40,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:40,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:40,827 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:01:40,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146081032] [2021-10-13 08:01:40,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1146081032] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:01:40,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:01:40,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 08:01:40,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733735657] [2021-10-13 08:01:40,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 08:01:40,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:01:40,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 08:01:40,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:01:40,858 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 32 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:40,878 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-13 08:01:40,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 08:01:40,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 08:01:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:40,890 INFO L225 Difference]: With dead ends: 63 [2021-10-13 08:01:40,890 INFO L226 Difference]: Without dead ends: 29 [2021-10-13 08:01:40,894 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 08:01:40,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-13 08:01:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-13 08:01:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-13 08:01:40,933 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-13 08:01:40,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:40,934 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-13 08:01:40,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:40,934 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-13 08:01:40,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 08:01:40,935 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:40,935 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:40,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:41,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:01:41,139 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:01:41,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:41,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-13 08:01:41,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:01:41,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [166649479] [2021-10-13 08:01:41,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:41,141 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:01:41,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:01:41,143 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:01:41,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 08:01:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:41,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:01:41,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:41,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:41,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:41,501 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:01:41,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [166649479] [2021-10-13 08:01:41,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [166649479] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:01:41,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:01:41,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 08:01:41,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703840359] [2021-10-13 08:01:41,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:01:41,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:01:41,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:01:41,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:01:41,511 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:42,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:42,265 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2021-10-13 08:01:42,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 08:01:42,275 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-13 08:01:42,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:42,276 INFO L225 Difference]: With dead ends: 50 [2021-10-13 08:01:42,277 INFO L226 Difference]: Without dead ends: 46 [2021-10-13 08:01:42,278 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 173.1ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:01:42,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-13 08:01:42,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 25. [2021-10-13 08:01:42,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:42,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-10-13 08:01:42,288 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 7 [2021-10-13 08:01:42,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:42,289 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-10-13 08:01:42,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:42,289 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-10-13 08:01:42,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 08:01:42,290 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:42,290 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:42,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:42,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:01:42,495 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:01:42,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:42,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-13 08:01:42,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:01:42,496 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775274880] [2021-10-13 08:01:42,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:42,497 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:01:42,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:01:42,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:01:42,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 08:01:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:42,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:01:42,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:42,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:42,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:44,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:44,116 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:01:44,116 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775274880] [2021-10-13 08:01:44,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775274880] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:01:44,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:01:44,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 08:01:44,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625266066] [2021-10-13 08:01:44,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:01:44,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:01:44,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:01:44,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:01:44,120 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:45,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:45,623 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2021-10-13 08:01:45,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 08:01:45,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-13 08:01:45,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:45,642 INFO L225 Difference]: With dead ends: 46 [2021-10-13 08:01:45,642 INFO L226 Difference]: Without dead ends: 42 [2021-10-13 08:01:45,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 827.6ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-13 08:01:45,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-13 08:01:45,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2021-10-13 08:01:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.1875) internal successors, (38), 35 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:45,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2021-10-13 08:01:45,654 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 9 [2021-10-13 08:01:45,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:45,655 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-10-13 08:01:45,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.3333333333333335) internal successors, (14), 6 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:45,656 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2021-10-13 08:01:45,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 08:01:45,656 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:45,657 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:45,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:45,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:01:45,874 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:01:45,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:45,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-13 08:01:45,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:01:45,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836035727] [2021-10-13 08:01:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:45,877 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:01:45,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:01:45,878 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:01:45,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 08:01:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:46,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-13 08:01:46,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:46,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:46,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:01:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:47,903 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:01:47,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836035727] [2021-10-13 08:01:47,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836035727] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:01:47,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:01:47,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 08:01:47,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17270063] [2021-10-13 08:01:47,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 08:01:47,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:01:47,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 08:01:47,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 08:01:47,906 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:55,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:01:55,991 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2021-10-13 08:01:55,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 08:01:55,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 08:01:55,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:01:55,994 INFO L225 Difference]: With dead ends: 60 [2021-10-13 08:01:55,994 INFO L226 Difference]: Without dead ends: 48 [2021-10-13 08:01:55,995 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2705.7ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-13 08:01:55,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-13 08:01:56,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2021-10-13 08:01:56,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 42 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:56,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-10-13 08:01:56,006 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 11 [2021-10-13 08:01:56,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:01:56,007 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-10-13 08:01:56,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:01:56,007 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-10-13 08:01:56,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 08:01:56,008 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:01:56,008 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:01:56,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 08:01:56,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 08:01:56,216 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:01:56,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:01:56,217 INFO L82 PathProgramCache]: Analyzing trace with hash -583489763, now seen corresponding path program 1 times [2021-10-13 08:01:56,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:01:56,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43307183] [2021-10-13 08:01:56,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:01:56,218 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:01:56,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:01:56,219 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:01:56,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 08:01:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:01:56,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 08:01:56,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:01:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:01:56,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:02:00,461 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:00,461 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:02:00,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [43307183] [2021-10-13 08:02:00,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [43307183] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:02:00,462 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1559137388] [2021-10-13 08:02:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:00,462 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:02:00,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:02:00,478 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:02:00,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-13 08:02:00,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:02:00,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 08:02:00,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:02:01,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:01,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:02:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:03,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1559137388] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:02:03,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011083695] [2021-10-13 08:02:03,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:03,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:02:03,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:02:03,023 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:02:03,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-13 08:02:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:02:03,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 08:02:03,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:02:03,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:03,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:02:05,606 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:05,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011083695] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:02:05,607 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:02:05,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 5] total 9 [2021-10-13 08:02:05,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634183162] [2021-10-13 08:02:05,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-13 08:02:05,608 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:02:05,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-13 08:02:05,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-13 08:02:05,610 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:37,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:02:37,122 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2021-10-13 08:02:37,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 08:02:37,137 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-13 08:02:37,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:02:37,138 INFO L225 Difference]: With dead ends: 81 [2021-10-13 08:02:37,138 INFO L226 Difference]: Without dead ends: 73 [2021-10-13 08:02:37,139 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 9920.3ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-10-13 08:02:37,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-13 08:02:37,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 57. [2021-10-13 08:02:37,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 53 states have (on average 1.150943396226415) internal successors, (61), 56 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:37,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-10-13 08:02:37,153 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 16 [2021-10-13 08:02:37,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:02:37,153 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-10-13 08:02:37,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:02:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-10-13 08:02:37,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 08:02:37,154 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:02:37,155 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-13 08:02:37,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-13 08:02:37,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 08:02:37,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-13 08:02:37,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:02:37,767 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:02:37,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:02:37,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1115495499, now seen corresponding path program 1 times [2021-10-13 08:02:37,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:02:37,768 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [771114801] [2021-10-13 08:02:37,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:37,768 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:02:37,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:02:37,769 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:02:37,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 08:02:38,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:02:38,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 08:02:38,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:02:38,492 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:38,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:02:44,463 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-13 08:02:44,463 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:02:44,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [771114801] [2021-10-13 08:02:44,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [771114801] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:02:44,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1168981894] [2021-10-13 08:02:44,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:44,464 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:02:44,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:02:44,466 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:02:44,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-13 08:02:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:02:45,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 08:02:45,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:02:45,441 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:45,441 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:02:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-13 08:02:51,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1168981894] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:02:51,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054903718] [2021-10-13 08:02:51,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:02:51,035 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:02:51,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:02:51,036 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:02:51,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-13 08:02:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:02:51,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-13 08:02:51,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:02:52,642 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:02:52,643 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:03:32,952 WARN L207 SmtUtils]: Spent 5.64 s on a formula simplification that was a NOOP. DAG size: 59 [2021-10-13 08:04:08,071 WARN L207 SmtUtils]: Spent 6.74 s on a formula simplification that was a NOOP. DAG size: 61 [2021-10-13 08:04:21,544 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse5 (bvmul .cse2 .cse2)) (.cse3 ((_ sign_extend 32) (_ bv4 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32))) (.cse0 ((_ sign_extend 32) (_ bv0 32)))) (or (= (bvadd .cse0 (bvmul c_ULTIMATE.start_main_~s~0 .cse1) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse2)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse2 .cse2)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0))) (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvneg (bvmul .cse3 (let ((.cse4 (bvadd .cse2 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (bvmul .cse2 .cse4) (_ bv2 64)) (bvmul .cse4 .cse4) .cse5)))) (bvmul (_ bv4 64) (bvmul .cse2 .cse2 .cse1)) (bvmul (_ bv32 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse2 .cse2 .cse2)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse2)) .cse2 (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse2 .cse1)) (bvmul (_ bv16 64) (bvmul .cse2 .cse2 .cse2 .cse2)) (bvmul (_ bv24 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse2 .cse2)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0))) (not (= (bvadd (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse2)) (bvmul (_ bv4 64) .cse5) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse1))) (not (= (bvadd .cse2 (bvneg (bvmul .cse3 c_ULTIMATE.start_main_~s~0)) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~t~0) (bvmul c_ULTIMATE.start_main_~t~0 .cse1)) .cse0))))) is different from true [2021-10-13 08:05:20,230 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ sign_extend 32) (_ bv2 32))) (.cse0 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse4 (bvmul .cse0 .cse0)) (.cse7 ((_ sign_extend 32) (_ bv0 32))) (.cse6 (bvmul c_ULTIMATE.start_main_~t~0 .cse1)) (.cse5 (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~t~0)) (.cse2 ((_ sign_extend 32) (_ bv4 32)))) (or (= (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvmul (_ bv54 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0 .cse0)) (bvmul c_ULTIMATE.start_main_~s~0 .cse1) (bvneg (bvmul .cse2 (let ((.cse3 (bvadd (bvmul .cse0 (_ bv2 64)) c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul .cse3 .cse3) (bvmul (bvmul .cse0 .cse3) (_ bv2 64)) .cse4)))) (bvmul (_ bv12 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0)) .cse0 (bvmul (_ bv108 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse0 .cse0)) (bvmul (_ bv81 64) (bvmul .cse0 .cse0 .cse0 .cse0)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0)) .cse5 (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0) .cse6) (bvadd (bvmul (_ bv12 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse0)) .cse7 (bvmul (_ bv18 64) (bvmul c_ULTIMATE.start_main_~t~0 .cse0 .cse0)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv6 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse1)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0)) (bvmul (_ bv9 64) (bvmul .cse0 .cse0 .cse1)) (bvmul (_ bv18 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse0 .cse0)) (bvmul (_ bv12 64) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~a~0 .cse0)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse1))) (not (= (bvadd (bvmul (_ bv6 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0)) (bvmul (_ bv9 64) .cse4) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd (bvmul (_ bv2 64) c_ULTIMATE.start_main_~t~0) c_ULTIMATE.start_main_~s~0 (bvmul (_ bv3 64) .cse1)))) (not (= .cse7 (bvadd .cse0 (bvmul (_ bv3 64) .cse6) .cse5 (bvmul (_ bv2 64) (bvmul .cse1 .cse1)) (bvneg (bvmul .cse2 (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse1))))))))) is different from true [2021-10-13 08:06:28,141 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 18 not checked. [2021-10-13 08:06:28,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054903718] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:06:28,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:06:28,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 6, 4, 10, 10] total 20 [2021-10-13 08:06:28,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547017369] [2021-10-13 08:06:28,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-13 08:06:28,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:06:28,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-13 08:06:28,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=217, Unknown=6, NotChecked=66, Total=380 [2021-10-13 08:06:28,145 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:06:43,119 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse1 ((_ sign_extend 32) (_ bv4 32))) (.cse2 ((_ sign_extend 32) (_ bv2 32))) (.cse0 ((_ sign_extend 32) (_ bv1 32)))) (and (= (bvadd .cse0 (bvneg (bvmul .cse1 c_ULTIMATE.start_main_~s~0)) (bvmul c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~t~0) (bvmul c_ULTIMATE.start_main_~t~0 .cse2)) .cse3) (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (let ((.cse5 (bvmul .cse0 .cse0))) (or (= (bvadd .cse3 (bvmul c_ULTIMATE.start_main_~s~0 .cse2) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0 .cse0)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~s~0 .cse0 .cse0)) (bvmul (_ bv2 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~s~0))) (bvadd (bvmul c_ULTIMATE.start_main_~s~0 c_ULTIMATE.start_main_~s~0) (bvneg (bvmul .cse1 (let ((.cse4 (bvadd .cse0 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (bvmul .cse0 .cse4) (_ bv2 64)) (bvmul .cse4 .cse4) .cse5)))) (bvmul (_ bv4 64) (bvmul .cse0 .cse0 .cse2)) (bvmul (_ bv32 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse0 .cse0)) (bvmul (_ bv8 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0)) .cse0 (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0 .cse2)) (bvmul (_ bv16 64) (bvmul .cse0 .cse0 .cse0 .cse0)) (bvmul (_ bv24 64) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse0 .cse0)) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 .cse2) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0))) (not (= (bvadd (bvmul (_ bv4 64) (bvmul c_ULTIMATE.start_main_~a~0 .cse0)) (bvmul (_ bv4 64) .cse5) (bvmul c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvadd c_ULTIMATE.start_main_~t~0 c_ULTIMATE.start_main_~s~0 .cse2))))))) is different from false [2021-10-13 08:08:27,732 WARN L207 SmtUtils]: Spent 20.60 s on a formula simplification that was a NOOP. DAG size: 68 [2021-10-13 08:08:40,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:08:40,739 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2021-10-13 08:08:40,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-13 08:08:40,821 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-10-13 08:08:40,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:08:40,822 INFO L225 Difference]: With dead ends: 63 [2021-10-13 08:08:40,822 INFO L226 Difference]: Without dead ends: 47 [2021-10-13 08:08:40,823 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 122 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 138873.7ms TimeCoverageRelationStatistics Valid=184, Invalid=413, Unknown=15, NotChecked=144, Total=756 [2021-10-13 08:08:40,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-13 08:08:40,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-13 08:08:40,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 46 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:40,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-10-13 08:08:40,834 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 25 [2021-10-13 08:08:40,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:08:40,835 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-10-13 08:08:40,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.75) internal successors, (75), 20 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:40,835 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-10-13 08:08:40,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 08:08:40,837 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:08:40,837 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-10-13 08:08:40,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-13 08:08:41,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 08:08:41,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-13 08:08:41,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt [2021-10-13 08:08:41,442 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-10-13 08:08:41,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:08:41,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1602839570, now seen corresponding path program 2 times [2021-10-13 08:08:41,443 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 08:08:41,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831410860] [2021-10-13 08:08:41,443 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 08:08:41,444 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 08:08:41,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 08:08:41,445 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 08:08:41,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-13 08:08:41,944 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 08:08:41,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 08:08:42,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-13 08:08:42,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:08:44,054 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:08:44,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:08:45,609 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:08:45,609 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 08:08:45,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831410860] [2021-10-13 08:08:45,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831410860] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:08:45,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2145807557] [2021-10-13 08:08:45,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 08:08:45,610 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-13 08:08:45,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 [2021-10-13 08:08:45,612 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-13 08:08:45,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-13 08:08:45,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 08:08:45,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 08:08:45,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-13 08:08:45,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:08:48,228 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:08:48,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:09:13,771 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:09:13,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2145807557] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:09:13,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766663149] [2021-10-13 08:09:13,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-13 08:09:13,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:09:13,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:09:13,790 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:09:13,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-13 08:09:14,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-13 08:09:14,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-13 08:09:14,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-13 08:09:14,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:09:20,131 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:09:20,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:11:26,544 WARN L207 SmtUtils]: Spent 5.56 s on a formula simplification that was a NOOP. DAG size: 42 [2021-10-13 08:12:57,522 WARN L207 SmtUtils]: Spent 5.40 s on a formula simplification that was a NOOP. DAG size: 57 [2021-10-13 08:14:06,800 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 16 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:14:06,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766663149] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-13 08:14:06,800 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-13 08:14:06,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 14, 16] total 46 [2021-10-13 08:14:06,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109745558] [2021-10-13 08:14:06,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-10-13 08:14:06,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 08:14:06,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-10-13 08:14:06,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=1728, Unknown=9, NotChecked=0, Total=2070 [2021-10-13 08:14:06,805 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 46 states, 46 states have (on average 4.173913043478261) internal successors, (192), 46 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:14:25,126 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-13 08:14:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-13 08:14:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 4.173913043478261) internal successors, (192), 46 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-13 08:14:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:14:25,127 INFO L225 Difference]: With dead ends: 47 [2021-10-13 08:14:25,127 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:14:25,129 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 171 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 215823.3ms TimeCoverageRelationStatistics Valid=463, Invalid=2180, Unknown=9, NotChecked=0, Total=2652 [2021-10-13 08:14:25,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:14:25,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:14:25,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:25,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:14:25,130 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2021-10-13 08:14:25,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:14:25,131 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:14:25,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.173913043478261) internal successors, (192), 46 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:14:25,131 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:14:25,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:14:25,134 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:14:25,135 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:14:25,135 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:14:25,136 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:14:25,136 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:14:25,136 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:14:25,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:25,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-13 08:14:25,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-10-13 08:14:25,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/cvc4 --incremental --print-success --lang smt,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:14:25,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:14:25,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:14:25,859 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:14:25,933 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:14:25,956 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:14:25,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:14:26,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:14:26,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:14:26,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:14:35,829 WARN L207 SmtUtils]: Spent 6.22 s on a formula simplification. DAG size of input: 118 DAG size of output: 51 [2021-10-13 08:14:59,585 WARN L207 SmtUtils]: Spent 20.25 s on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2021-10-13 08:15:05,484 WARN L207 SmtUtils]: Spent 5.90 s on a formula simplification. DAG size of input: 67 DAG size of output: 25 [2021-10-13 08:15:08,860 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:15:08,860 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:15:08,861 INFO L860 garLoopResultBuilder]: At program point L48(lines 20 49) the Hoare annotation is: true [2021-10-13 08:15:08,861 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 08:15:08,861 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:15:08,861 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:15:08,861 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 08:15:08,861 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:15:08,861 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:15:08,861 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse9 ((_ sign_extend 32) (_ bv2 32))) (.cse2 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse8 (bvmul (_ bv2 64) .cse2)) (.cse7 (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse2)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse2 .cse2)))) (.cse4 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse5 (bvsle ULTIMATE.start_main_~n~0 (_ bv10 32))) (.cse6 (= ULTIMATE.start_main_~t~0 (bvadd .cse2 (bvmul ULTIMATE.start_main_~a~0 .cse9))))) (or (and .cse0 .cse1 (= .cse2 ULTIMATE.start_main_~s~0) (= .cse3 ULTIMATE.start_main_~a~0) .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse7 .cse4 .cse5 (= ULTIMATE.start_main_~a~0 (bvadd .cse3 (bvmul (_ bv3 64) .cse2))) .cse6) (and .cse0 .cse1 .cse4 .cse5 (= (bvadd .cse8 .cse9) ULTIMATE.start_main_~s~0) (= ULTIMATE.start_main_~a~0 (bvadd .cse3 .cse2)) .cse6) (and .cse0 .cse1 (= (bvadd .cse3 .cse8) ULTIMATE.start_main_~a~0) .cse7 .cse4 .cse5 .cse6)))) [2021-10-13 08:15:08,862 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:15:08,862 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-10-13 08:15:08,862 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse9 ((_ sign_extend 32) (_ bv2 32))) (.cse10 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse4 (bvmul (_ bv2 64) .cse10)) (.cse5 (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse10)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse10 .cse10)))) (.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse6 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse7 (bvsle ULTIMATE.start_main_~n~0 (_ bv10 32))) (.cse8 (= ULTIMATE.start_main_~t~0 (bvadd .cse10 (bvmul ULTIMATE.start_main_~a~0 .cse9))))) (or (and .cse0 .cse1 .cse2 (= (bvadd .cse3 .cse4) ULTIMATE.start_main_~a~0) .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse6 .cse7 (= (bvadd .cse4 .cse9) ULTIMATE.start_main_~s~0) (= ULTIMATE.start_main_~a~0 (bvadd .cse3 .cse10)) .cse8) (and .cse0 .cse1 .cse2 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~a~0 (bvadd .cse3 (bvmul (_ bv3 64) .cse10))) .cse8) (and .cse0 .cse1 .cse2 (= .cse10 ULTIMATE.start_main_~s~0) (= .cse3 ULTIMATE.start_main_~a~0) .cse6 .cse7 .cse8)))) [2021-10-13 08:15:08,862 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:15:08,863 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 36 37) the Hoare annotation is: (let ((.cse9 ((_ sign_extend 32) (_ bv2 32))) (.cse10 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse4 (bvmul (_ bv2 64) .cse10)) (.cse5 (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse10)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse10 .cse10)))) (.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse6 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse7 (bvsle ULTIMATE.start_main_~n~0 (_ bv10 32))) (.cse8 (= ULTIMATE.start_main_~t~0 (bvadd .cse10 (bvmul ULTIMATE.start_main_~a~0 .cse9))))) (or (and .cse0 .cse1 .cse2 (= (bvadd .cse3 .cse4) ULTIMATE.start_main_~a~0) .cse5 .cse6 .cse7 .cse8) (and .cse0 .cse1 .cse2 .cse6 .cse7 (= (bvadd .cse4 .cse9) ULTIMATE.start_main_~s~0) (= ULTIMATE.start_main_~a~0 (bvadd .cse3 .cse10)) .cse8) (and .cse0 .cse1 .cse2 .cse5 .cse6 .cse7 (= ULTIMATE.start_main_~a~0 (bvadd .cse3 (bvmul (_ bv3 64) .cse10))) .cse8) (and .cse0 .cse1 .cse2 (= .cse10 ULTIMATE.start_main_~s~0) (= .cse3 ULTIMATE.start_main_~a~0) .cse6 .cse7 .cse8)))) [2021-10-13 08:15:08,863 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:15:08,864 INFO L853 garLoopResultBuilder]: At program point L12-11(lines 11 17) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse2 ((_ sign_extend 32) (_ bv0 32))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start_main_~t~0 (bvadd .cse0 (bvmul ULTIMATE.start_main_~a~0 .cse1))))) (or (and (= (bvadd .cse0 (bvneg (bvmul ((_ sign_extend 32) (_ bv4 32)) ULTIMATE.start_main_~s~0)) (bvmul ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) (bvmul ULTIMATE.start_main_~t~0 .cse1)) .cse2) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse0)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse0 .cse0))) (or (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) .cse3 .cse4) (and (= .cse0 ULTIMATE.start_main_~s~0) (= .cse2 ULTIMATE.start_main_~a~0) .cse3 .cse4)))) [2021-10-13 08:15:08,864 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:15:08,864 INFO L857 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:15:08,865 INFO L853 garLoopResultBuilder]: At program point L12-14(lines 11 17) the Hoare annotation is: (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse1 ((_ sign_extend 32) (_ bv2 32)))) (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= (bvadd .cse0 (bvneg (bvmul ((_ sign_extend 32) (_ bv4 32)) ULTIMATE.start_main_~s~0)) (bvmul ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~t~0) (bvmul ULTIMATE.start_main_~t~0 .cse1)) ((_ sign_extend 32) (_ bv0 32))) (= ULTIMATE.start_main_~t~0 (bvadd .cse0 (bvmul ULTIMATE.start_main_~a~0 .cse1))))) [2021-10-13 08:15:08,865 INFO L857 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-13 08:15:08,865 INFO L860 garLoopResultBuilder]: At program point L12-17(lines 11 17) the Hoare annotation is: true [2021-10-13 08:15:08,865 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:15:08,866 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:15:08,866 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:15:08,866 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:15:08,866 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:15:08,866 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-13 08:15:08,866 INFO L857 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:15:08,867 INFO L857 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-13 08:15:08,867 INFO L853 garLoopResultBuilder]: At program point L30-2(lines 30 42) the Hoare annotation is: (let ((.cse5 ((_ sign_extend 32) (_ bv0 32))) (.cse6 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse10 (= .cse6 ULTIMATE.start_main_~t~0)) (.cse11 (= .cse5 ULTIMATE.start_main_~a~0)) (.cse9 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse8 (bvmul (_ bv2 64) .cse6)) (.cse2 (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse6)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse6 .cse6)))) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse4 (bvsle ULTIMATE.start_main_~n~0 (_ bv10 32))) (.cse7 (or (and .cse10 .cse11) (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~t~0 (bvadd .cse6 (bvmul ULTIMATE.start_main_~a~0 .cse9))))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ULTIMATE.start_main_~a~0 (bvadd .cse5 (bvmul (_ bv3 64) .cse6))) .cse7) (and .cse0 .cse1 .cse3 .cse4 .cse7 (= (bvadd .cse8 .cse9) ULTIMATE.start_main_~s~0) (= ULTIMATE.start_main_~a~0 (bvadd .cse5 .cse6))) (and .cse0 .cse10 .cse1 (= .cse6 ULTIMATE.start_main_~s~0) .cse11 .cse4) (and .cse0 .cse1 (= (bvadd .cse5 .cse8) ULTIMATE.start_main_~a~0) .cse2 .cse3 .cse4 .cse7))))) [2021-10-13 08:15:08,867 INFO L857 garLoopResultBuilder]: For program point L30-3(lines 30 42) no Hoare annotation was computed. [2021-10-13 08:15:08,867 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-13 08:15:08,873 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:15:08,902 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:139) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:452) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-13 08:15:08,905 INFO L168 Benchmark]: Toolchain (without parser) took 809895.65 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 43.0 MB in the beginning and 48.4 MB in the end (delta: -5.5 MB). Peak memory consumption was 49.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:08,906 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:15:08,906 INFO L168 Benchmark]: CACSL2BoogieTranslator took 403.51 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 46.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:08,907 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.40 ms. Allocated memory is still 62.9 MB. Free memory was 46.6 MB in the beginning and 45.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:08,908 INFO L168 Benchmark]: Boogie Preprocessor took 61.32 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 43.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:15:08,908 INFO L168 Benchmark]: RCFGBuilder took 867.01 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 33.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:08,909 INFO L168 Benchmark]: TraceAbstraction took 808461.32 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 32.8 MB in the beginning and 48.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. [2021-10-13 08:15:08,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 403.51 ms. Allocated memory is still 62.9 MB. Free memory was 42.7 MB in the beginning and 46.8 MB in the end (delta: -4.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 93.40 ms. Allocated memory is still 62.9 MB. Free memory was 46.6 MB in the beginning and 45.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.32 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 43.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 867.01 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 33.1 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 808461.32 ms. Allocated memory was 62.9 MB in the beginning and 88.1 MB in the end (delta: 25.2 MB). Free memory was 32.8 MB in the beginning and 48.4 MB in the end (delta: -15.7 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 808365.9ms, OverallIterations: 7, TraceHistogramMax: 5, EmptinessCheckTime: 42.9ms, AutomataDifference: 192976.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 43109.5ms, InitialAbstractionConstructionTime: 10.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 102 SDtfs, 354 SDslu, 212 SDs, 0 SdLazy, 838 SolverSat, 336 SolverUnsat, 38 SolverUnknown, 0 SolverNotchecked, 106267.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 546 GetRequests, 424 SyntacticMatches, 7 SemanticMatches, 115 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 1023 ImplicationChecksByTransitivity, 368324.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=5, InterpolantAutomatonStates: 60, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 79.2ms AutomataMinimizationTime, 7 MinimizatonAttempts, 48 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 34 NumberOfFragments, 840 HoareAnnotationTreeSize, 8 FomulaSimplifications, 392 FormulaSimplificationTreeSizeReduction, 269.3ms HoareSimplificationTime, 8 FomulaSimplificationsInter, 2035 FormulaSimplificationTreeSizeReductionInter, 42832.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 109.3ms SsaConstructionTime, 2534.4ms SatisfiabilityAnalysisTime, 565260.7ms InterpolantComputationTime, 268 NumberOfCodeBlocks, 268 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 510 ConstructedInterpolants, 0 QuantifiedInterpolants, 12086 SizeOfPredicates, 62 NumberOfNonLiveVariables, 734 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 98/486 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: ((((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(3bv64, ~sign_extendFrom8To32(1bv32)))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((~bvsge32(n, 0bv32) && cond == 1bv32) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(3bv64, ~sign_extendFrom8To32(1bv32)))) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32)))) || (((((~bvsge32(n, 0bv32) && ~sign_extendFrom8To32(1bv32) == t) && cond == 1bv32) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && ~bvsle64(n, 10bv32))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(3bv64, ~sign_extendFrom8To32(1bv32)))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && cond == 1bv32) && ~bvsle64(n, 10bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-13 08:15:09,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c37fce27-a050-4681-ae83-a7ce0a3f1330/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...