./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 572360d878facce0c5d840a57f70fa0d65d827a5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 572360d878facce0c5d840a57f70fa0d65d827a5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:46:41,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:46:41,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:46:41,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:46:41,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:46:41,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:46:41,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:46:41,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:46:41,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:46:41,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:46:41,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:46:41,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:46:41,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:46:41,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:46:41,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:46:41,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:46:41,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:46:41,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:46:41,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:46:41,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:46:41,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:46:41,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:46:41,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:46:41,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:46:41,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:46:41,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:46:41,149 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:46:41,150 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:46:41,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:46:41,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:46:41,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:46:41,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:46:41,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:46:41,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:46:41,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:46:41,158 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:46:41,159 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:46:41,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:46:41,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:46:41,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:46:41,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:46:41,163 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:46:41,191 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:46:41,191 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:46:41,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:46:41,193 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:46:41,193 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:46:41,193 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:46:41,193 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:46:41,194 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:46:41,194 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:46:41,194 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:46:41,195 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:46:41,195 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:46:41,195 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:46:41,196 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:46:41,196 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:46:41,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:46:41,197 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:46:41,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:46:41,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:46:41,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:46:41,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:46:41,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:46:41,199 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:46:41,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:46:41,199 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:46:41,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:46:41,200 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:46:41,200 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:46:41,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:46:41,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:46:41,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:41,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:46:41,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:46:41,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:46:41,202 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:46:41,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:46:41,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:46:41,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:46:41,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:46:41,204 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_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572360d878facce0c5d840a57f70fa0d65d827a5 [2021-10-16 02:46:41,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:46:41,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:46:41,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:46:41,520 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:46:41,521 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:46:41,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-16 02:46:41,638 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data/113268857/e79222aba6454d85b7742abbb96b4580/FLAGf9073b189 [2021-10-16 02:46:42,124 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:46:42,125 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-16 02:46:42,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data/113268857/e79222aba6454d85b7742abbb96b4580/FLAGf9073b189 [2021-10-16 02:46:42,507 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data/113268857/e79222aba6454d85b7742abbb96b4580 [2021-10-16 02:46:42,511 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:46:42,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:46:42,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:42,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:46:42,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:46:42,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3efbb1a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42, skipping insertion in model container [2021-10-16 02:46:42,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:46:42,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:46:42,724 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_eb386637-4d05-4e0b-be85-72b312813cd0/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-16 02:46:42,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:42,757 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:46:42,775 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_eb386637-4d05-4e0b-be85-72b312813cd0/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-16 02:46:42,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:42,820 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:46:42,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42 WrapperNode [2021-10-16 02:46:42,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:42,827 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:42,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:46:42,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:46:42,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:42,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:46:42,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:46:42,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:46:42,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,893 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:46:42,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:46:42,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:46:42,923 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:46:42,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (1/1) ... [2021-10-16 02:46:42,931 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:42,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:46:42,954 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:46:42,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:46:43,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:46:43,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:46:43,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:46:43,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:46:43,332 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:46:43,332 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-16 02:46:43,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:43 BoogieIcfgContainer [2021-10-16 02:46:43,335 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:46:43,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:46:43,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:46:43,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:46:43,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:46:42" (1/3) ... [2021-10-16 02:46:43,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560fc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:43, skipping insertion in model container [2021-10-16 02:46:43,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:42" (2/3) ... [2021-10-16 02:46:43,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560fc1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:43, skipping insertion in model container [2021-10-16 02:46:43,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:43" (3/3) ... [2021-10-16 02:46:43,345 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound5.c [2021-10-16 02:46:43,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:46:43,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:46:43,417 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:46:43,440 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 [2021-10-16 02:46:43,440 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:46:43,474 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) [2021-10-16 02:46:43,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:46:43,495 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:43,496 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:46:43,496 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)] === [2021-10-16 02:46:43,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:43,502 INFO L82 PathProgramCache]: Analyzing trace with hash 3950384, now seen corresponding path program 1 times [2021-10-16 02:46:43,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:46:43,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100438147] [2021-10-16 02:46:43,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:43,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:46:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:43,734 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:46:43,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100438147] [2021-10-16 02:46:43,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100438147] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:43,736 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:43,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:46:43,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986471322] [2021-10-16 02:46:43,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:46:43,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:46:43,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:46:43,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:46:43,769 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) [2021-10-16 02:46:43,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:43,884 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions. [2021-10-16 02:46:43,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:46:43,886 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 [2021-10-16 02:46:43,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:43,895 INFO L225 Difference]: With dead ends: 78 [2021-10-16 02:46:43,896 INFO L226 Difference]: Without dead ends: 47 [2021-10-16 02:46:43,899 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:46:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-16 02:46:43,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2021-10-16 02:46:43,935 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) [2021-10-16 02:46:43,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2021-10-16 02:46:43,938 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 4 [2021-10-16 02:46:43,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:43,939 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2021-10-16 02:46:43,939 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) [2021-10-16 02:46:43,939 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2021-10-16 02:46:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-16 02:46:43,940 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:43,940 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-16 02:46:43,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:46:43,941 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)] === [2021-10-16 02:46:43,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:43,942 INFO L82 PathProgramCache]: Analyzing trace with hash -498492525, now seen corresponding path program 1 times [2021-10-16 02:46:43,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:46:43,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272535030] [2021-10-16 02:46:43,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:43,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:46:43,961 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:46:43,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [368616660] [2021-10-16 02:46:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:43,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:46:43,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:46:43,965 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:46:43,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:46:44,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:44,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:46:44,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:44,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:44,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:44,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:44,251 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:46:44,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272535030] [2021-10-16 02:46:44,252 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:46:44,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368616660] [2021-10-16 02:46:44,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368616660] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:44,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:44,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:46:44,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882570827] [2021-10-16 02:46:44,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:46:44,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:46:44,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:46:44,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:46:44,258 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) [2021-10-16 02:46:44,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:44,341 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-16 02:46:44,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:46:44,342 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 [2021-10-16 02:46:44,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:44,344 INFO L225 Difference]: With dead ends: 47 [2021-10-16 02:46:44,344 INFO L226 Difference]: Without dead ends: 43 [2021-10-16 02:46:44,345 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:46:44,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-16 02:46:44,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 37. [2021-10-16 02:46:44,353 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) [2021-10-16 02:46:44,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2021-10-16 02:46:44,354 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 6 [2021-10-16 02:46:44,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:44,355 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2021-10-16 02:46:44,355 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) [2021-10-16 02:46:44,356 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2021-10-16 02:46:44,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:46:44,356 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:44,357 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:44,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:44,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:46:44,571 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)] === [2021-10-16 02:46:44,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:44,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1985176726, now seen corresponding path program 1 times [2021-10-16 02:46:44,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:46:44,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980911981] [2021-10-16 02:46:44,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:44,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:46:44,610 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:46:44,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1056420015] [2021-10-16 02:46:44,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:44,611 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:46:44,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:46:44,624 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:46:44,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-16 02:46:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:44,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:46:44,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:44,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:44,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:44,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:44,955 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:46:44,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980911981] [2021-10-16 02:46:44,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:46:44,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056420015] [2021-10-16 02:46:44,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056420015] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:44,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:44,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:46:44,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674040712] [2021-10-16 02:46:44,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 02:46:44,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:46:44,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 02:46:44,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:46:44,959 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) [2021-10-16 02:46:45,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:45,266 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2021-10-16 02:46:45,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:46:45,266 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 [2021-10-16 02:46:45,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:45,267 INFO L225 Difference]: With dead ends: 39 [2021-10-16 02:46:45,267 INFO L226 Difference]: Without dead ends: 27 [2021-10-16 02:46:45,268 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 75.2ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:46:45,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-16 02:46:45,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-16 02:46:45,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.173913043478261) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:46:45,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2021-10-16 02:46:45,274 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 8 [2021-10-16 02:46:45,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:45,275 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2021-10-16 02:46:45,275 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) [2021-10-16 02:46:45,275 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2021-10-16 02:46:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:46:45,276 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:45,276 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:45,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:45,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:46:45,502 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)] === [2021-10-16 02:46:45,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:45,502 INFO L82 PathProgramCache]: Analyzing trace with hash -1294888167, now seen corresponding path program 1 times [2021-10-16 02:46:45,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:46:45,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642609403] [2021-10-16 02:46:45,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:45,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:46:45,527 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-16 02:46:45,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884434825] [2021-10-16 02:46:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:45,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:46:45,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:46:45,532 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:46:45,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-16 02:46:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:45,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:46:45,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:45,689 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:45,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:45,744 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 02:46:45,744 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:46:45,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642609403] [2021-10-16 02:46:45,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-16 02:46:45,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884434825] [2021-10-16 02:46:45,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884434825] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:46:45,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2087856775] [2021-10-16 02:46:45,767 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2021-10-16 02:46:45,768 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:46:45,772 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:46:45,778 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:46:45,779 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:46:45,825 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:45,829 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:46:45,830 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:45,830 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:46:45,834 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:46:45,835 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:45,836 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:46:45,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-10-16 02:46:45,879 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:46:45,879 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:46:45,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:45,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:46:45,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:45,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:46:45,883 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:46:45,888 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:46:45,890 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-16 02:46:45,891 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:45,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:46:45,892 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:45,892 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-10-16 02:46:45,893 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-16 02:46:45,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:45,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:45,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:46:45,966 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:46:45,966 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 [2021-10-16 02:46:45,968 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:45,972 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:46:45,973 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:45,975 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:46:45,975 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-10-16 02:46:45,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:46:46,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:46:46,084 INFO L180 QuantifierPusher]: treesize reduction 8, result has 94.0 percent of original size [2021-10-16 02:46:46,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-10-16 02:46:46,092 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:46:46,093 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:444, output treesize:125 [2021-10-16 02:46:46,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:46,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:46:46,309 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) [2021-10-16 02:46:46,313 INFO L168 Benchmark]: Toolchain (without parser) took 3800.60 ms. Allocated memory is still 125.8 MB. Free memory was 89.3 MB in the beginning and 50.4 MB in the end (delta: 38.8 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:46,314 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 99.1 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:46:46,315 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.87 ms. Allocated memory is still 125.8 MB. Free memory was 89.0 MB in the beginning and 100.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:46,316 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.46 ms. Allocated memory is still 125.8 MB. Free memory was 100.1 MB in the beginning and 98.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:46,316 INFO L168 Benchmark]: Boogie Preprocessor took 49.69 ms. Allocated memory is still 125.8 MB. Free memory was 98.7 MB in the beginning and 98.0 MB in the end (delta: 691.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:46:46,317 INFO L168 Benchmark]: RCFGBuilder took 412.46 ms. Allocated memory is still 125.8 MB. Free memory was 98.0 MB in the beginning and 84.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:46,318 INFO L168 Benchmark]: TraceAbstraction took 2974.90 ms. Allocated memory is still 125.8 MB. Free memory was 84.0 MB in the beginning and 50.4 MB in the end (delta: 33.6 MB). Peak memory consumption was 34.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:46,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 125.8 MB. Free memory was 99.2 MB in the beginning and 99.1 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 306.87 ms. Allocated memory is still 125.8 MB. Free memory was 89.0 MB in the beginning and 100.8 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.46 ms. Allocated memory is still 125.8 MB. Free memory was 100.1 MB in the beginning and 98.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.69 ms. Allocated memory is still 125.8 MB. Free memory was 98.7 MB in the beginning and 98.0 MB in the end (delta: 691.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 412.46 ms. Allocated memory is still 125.8 MB. Free memory was 98.0 MB in the beginning and 84.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2974.90 ms. Allocated memory is still 125.8 MB. Free memory was 84.0 MB in the beginning and 50.4 MB in the end (delta: 33.6 MB). Peak memory consumption was 34.1 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. [2021-10-16 02:46:46,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/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-5709675 [2021-10-16 02:46:49,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:46:49,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:46:49,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:46:49,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:46:49,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:46:49,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:46:49,084 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:46:49,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:46:49,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:46:49,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:46:49,099 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:46:49,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:46:49,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:46:49,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:46:49,110 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:46:49,112 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:46:49,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:46:49,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:46:49,127 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:46:49,129 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:46:49,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:46:49,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:46:49,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:46:49,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:46:49,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:46:49,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:46:49,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:46:49,150 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:46:49,151 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:46:49,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:46:49,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:46:49,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:46:49,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:46:49,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:46:49,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:46:49,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:46:49,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:46:49,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:46:49,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:46:49,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:46:49,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:46:49,214 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:46:49,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:46:49,216 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:46:49,216 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:46:49,216 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:46:49,216 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:46:49,217 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:46:49,217 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:46:49,217 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:46:49,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:46:49,220 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:46:49,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:46:49,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:46:49,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:46:49,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:46:49,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:46:49,221 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:46:49,221 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:46:49,221 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:46:49,222 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:46:49,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:46:49,222 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:46:49,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:46:49,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:46:49,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:46:49,223 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:46:49,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:49,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:46:49,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:46:49,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:46:49,224 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:46:49,224 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:46:49,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:46:49,225 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:46:49,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:46:49,226 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_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 572360d878facce0c5d840a57f70fa0d65d827a5 [2021-10-16 02:46:49,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:46:49,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:46:49,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:46:49,648 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:46:49,648 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:46:49,650 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-16 02:46:49,732 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data/00a401f84/e40f7797afb74563a86f564dc16bdb75/FLAGfd9160aeb [2021-10-16 02:46:50,276 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:46:50,277 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c [2021-10-16 02:46:50,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data/00a401f84/e40f7797afb74563a86f564dc16bdb75/FLAGfd9160aeb [2021-10-16 02:46:50,628 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/data/00a401f84/e40f7797afb74563a86f564dc16bdb75 [2021-10-16 02:46:50,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:46:50,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:46:50,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:50,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:46:50,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:46:50,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:50" (1/1) ... [2021-10-16 02:46:50,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56dbd929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:50, skipping insertion in model container [2021-10-16 02:46:50,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:50" (1/1) ... [2021-10-16 02:46:50,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:46:50,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:46:50,860 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_eb386637-4d05-4e0b-be85-72b312813cd0/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-16 02:46:50,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:50,939 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:46:50,961 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_eb386637-4d05-4e0b-be85-72b312813cd0/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound5.c[520,533] [2021-10-16 02:46:50,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:51,017 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:46:51,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51 WrapperNode [2021-10-16 02:46:51,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:51,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:51,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:46:51,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:46:51,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,052 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:51,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:46:51,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:46:51,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:46:51,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:46:51,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:46:51,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:46:51,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:46:51,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (1/1) ... [2021-10-16 02:46:51,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:51,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:46:51,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:46:51,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:46:51,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:46:51,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:46:51,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:46:51,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:46:52,248 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:46:52,248 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-10-16 02:46:52,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:52 BoogieIcfgContainer [2021-10-16 02:46:52,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:46:52,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:46:52,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:46:52,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:46:52,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:46:50" (1/3) ... [2021-10-16 02:46:52,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63885d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:52, skipping insertion in model container [2021-10-16 02:46:52,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:51" (2/3) ... [2021-10-16 02:46:52,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63885d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:52, skipping insertion in model container [2021-10-16 02:46:52,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:52" (3/3) ... [2021-10-16 02:46:52,259 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_valuebound5.c [2021-10-16 02:46:52,265 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:46:52,265 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-10-16 02:46:52,324 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:46:52,331 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 [2021-10-16 02:46:52,331 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-10-16 02:46:52,346 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) [2021-10-16 02:46:52,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:46:52,351 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:52,351 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:52,352 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)] === [2021-10-16 02:46:52,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:52,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1804972333, now seen corresponding path program 1 times [2021-10-16 02:46:52,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:52,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197462844] [2021-10-16 02:46:52,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:52,373 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:52,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:52,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:52,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:46:52,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:52,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:46:52,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:52,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:52,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:52,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:52,561 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:52,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197462844] [2021-10-16 02:46:52,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197462844] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:52,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:52,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:46:52,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461705309] [2021-10-16 02:46:52,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:46:52,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:52,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:46:52,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:46:52,596 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) [2021-10-16 02:46:52,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:52,619 INFO L93 Difference]: Finished difference Result 63 states and 80 transitions. [2021-10-16 02:46:52,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:46:52,621 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 [2021-10-16 02:46:52,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:52,631 INFO L225 Difference]: With dead ends: 63 [2021-10-16 02:46:52,631 INFO L226 Difference]: Without dead ends: 29 [2021-10-16 02:46:52,634 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:46:52,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-10-16 02:46:52,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-10-16 02:46:52,672 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) [2021-10-16 02:46:52,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-10-16 02:46:52,676 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 7 [2021-10-16 02:46:52,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:52,677 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-10-16 02:46:52,677 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) [2021-10-16 02:46:52,678 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-10-16 02:46:52,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:46:52,678 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:52,679 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:52,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:52,897 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:46:52,897 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)] === [2021-10-16 02:46:52,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:52,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1806819375, now seen corresponding path program 1 times [2021-10-16 02:46:52,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:52,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1395349882] [2021-10-16 02:46:52,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:52,906 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:52,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:52,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:52,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:46:52,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:52,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:46:52,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:53,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:53,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:53,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:53,284 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:53,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1395349882] [2021-10-16 02:46:53,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1395349882] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:53,285 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:53,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:46:53,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705714997] [2021-10-16 02:46:53,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:46:53,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:53,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:46:53,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:46:53,288 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) [2021-10-16 02:46:54,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:54,079 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2021-10-16 02:46:54,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 02:46:54,088 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 [2021-10-16 02:46:54,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:54,090 INFO L225 Difference]: With dead ends: 50 [2021-10-16 02:46:54,090 INFO L226 Difference]: Without dead ends: 46 [2021-10-16 02:46:54,091 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 166.7ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:46:54,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-16 02:46:54,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 25. [2021-10-16 02:46:54,098 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) [2021-10-16 02:46:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2021-10-16 02:46:54,100 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 7 [2021-10-16 02:46:54,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:54,100 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2021-10-16 02:46:54,100 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) [2021-10-16 02:46:54,100 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2021-10-16 02:46:54,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:46:54,101 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:54,101 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:54,119 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:54,312 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:46:54,312 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)] === [2021-10-16 02:46:54,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:54,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1186787538, now seen corresponding path program 1 times [2021-10-16 02:46:54,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:54,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564565797] [2021-10-16 02:46:54,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:54,315 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:54,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:54,320 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:54,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:46:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:54,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:46:54,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:54,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:54,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:46:56,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:56,141 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:46:56,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564565797] [2021-10-16 02:46:56,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564565797] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:56,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:56,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:46:56,142 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958713555] [2021-10-16 02:46:56,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:46:56,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:46:56,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:46:56,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:46:56,145 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) [2021-10-16 02:46:57,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:57,756 INFO L93 Difference]: Finished difference Result 46 states and 46 transitions. [2021-10-16 02:46:57,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:46:57,775 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 [2021-10-16 02:46:57,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:57,776 INFO L225 Difference]: With dead ends: 46 [2021-10-16 02:46:57,776 INFO L226 Difference]: Without dead ends: 42 [2021-10-16 02:46:57,777 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 847.3ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:46:57,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-16 02:46:57,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 36. [2021-10-16 02:46:57,788 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) [2021-10-16 02:46:57,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2021-10-16 02:46:57,789 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 9 [2021-10-16 02:46:57,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:57,790 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2021-10-16 02:46:57,790 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) [2021-10-16 02:46:57,790 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2021-10-16 02:46:57,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-16 02:46:57,791 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:57,792 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:57,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:46:58,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:46:58,006 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)] === [2021-10-16 02:46:58,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:58,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1958320619, now seen corresponding path program 1 times [2021-10-16 02:46:58,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:58,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401462032] [2021-10-16 02:46:58,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:58,008 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:58,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:58,012 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:58,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:46:58,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:58,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 02:46:58,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:46:58,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:58,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:00,422 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:00,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401462032] [2021-10-16 02:47:00,423 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401462032] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:00,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:00,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:47:00,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910194515] [2021-10-16 02:47:00,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:47:00,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:00,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:47:00,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:47:00,425 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) [2021-10-16 02:47:08,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:08,132 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2021-10-16 02:47:08,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 02:47:08,133 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 [2021-10-16 02:47:08,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:08,134 INFO L225 Difference]: With dead ends: 60 [2021-10-16 02:47:08,135 INFO L226 Difference]: Without dead ends: 48 [2021-10-16 02:47:08,135 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2707.9ms TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:47:08,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-10-16 02:47:08,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 43. [2021-10-16 02:47:08,152 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) [2021-10-16 02:47:08,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2021-10-16 02:47:08,155 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 11 [2021-10-16 02:47:08,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:08,155 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2021-10-16 02:47:08,156 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) [2021-10-16 02:47:08,156 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2021-10-16 02:47:08,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-16 02:47:08,158 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:08,158 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:08,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:08,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:08,373 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)] === [2021-10-16 02:47:08,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:08,373 INFO L82 PathProgramCache]: Analyzing trace with hash -583489763, now seen corresponding path program 1 times [2021-10-16 02:47:08,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:08,374 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [776280488] [2021-10-16 02:47:08,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:08,374 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:08,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:08,375 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:08,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:47:08,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:08,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:47:08,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:08,861 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:13,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:13,054 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:13,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [776280488] [2021-10-16 02:47:13,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [776280488] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:47:13,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [283384863] [2021-10-16 02:47:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:13,056 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:47:13,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:47:13,074 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:47:13,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-10-16 02:47:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:13,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:47:13,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:13,714 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:13,714 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:15,901 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:15,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [283384863] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:47:15,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [371492660] [2021-10-16 02:47:15,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:15,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:47:15,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:47:15,907 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:47:15,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-16 02:47:16,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:16,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 02:47:16,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:16,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:16,566 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:18,316 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:18,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [371492660] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:47:18,316 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:47:18,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 5] total 9 [2021-10-16 02:47:18,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129610035] [2021-10-16 02:47:18,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-16 02:47:18,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:18,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-16 02:47:18,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:47:18,318 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) [2021-10-16 02:47:49,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:49,669 INFO L93 Difference]: Finished difference Result 81 states and 85 transitions. [2021-10-16 02:47:49,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-16 02:47:49,688 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 [2021-10-16 02:47:49,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:49,689 INFO L225 Difference]: With dead ends: 81 [2021-10-16 02:47:49,689 INFO L226 Difference]: Without dead ends: 73 [2021-10-16 02:47:49,690 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 10167.0ms TimeCoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2021-10-16 02:47:49,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-10-16 02:47:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 57. [2021-10-16 02:47:49,707 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) [2021-10-16 02:47:49,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2021-10-16 02:47:49,710 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 16 [2021-10-16 02:47:49,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:49,711 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2021-10-16 02:47:49,712 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) [2021-10-16 02:47:49,713 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2021-10-16 02:47:49,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-16 02:47:49,714 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:49,714 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:49,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-16 02:47:49,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-10-16 02:47:50,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:50,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:47:50,342 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)] === [2021-10-16 02:47:50,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:50,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1115495499, now seen corresponding path program 1 times [2021-10-16 02:47:50,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:50,343 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152697503] [2021-10-16 02:47:50,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:50,343 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:50,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:50,344 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:50,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 02:47:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:50,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:47:50,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:51,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-16 02:47:59,140 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:59,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [152697503] [2021-10-16 02:47:59,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [152697503] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:47:59,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [199704942] [2021-10-16 02:47:59,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:59,141 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:47:59,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:47:59,143 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:47:59,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-10-16 02:47:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:59,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:47:59,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:00,083 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:00,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-16 02:48:07,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [199704942] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:48:07,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669073634] [2021-10-16 02:48:07,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:48:07,170 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:48:07,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:48:07,180 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:48:07,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-16 02:48:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:48:07,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-16 02:48:07,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:48:08,883 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:48:08,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:48:53,649 WARN L207 SmtUtils]: Spent 6.25 s on a formula simplification that was a NOOP. DAG size: 59 [2021-10-16 02:49:31,515 WARN L207 SmtUtils]: Spent 8.05 s on a formula simplification that was a NOOP. DAG size: 61 [2021-10-16 02:49:45,330 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 [2021-10-16 02:50:43,460 WARN L838 $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 false [2021-10-16 02:50:45,571 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 [2021-10-16 02:51:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 18 not checked. [2021-10-16 02:51:58,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669073634] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:51:58,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:51:58,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 6, 4, 10, 10] total 20 [2021-10-16 02:51:58,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877761574] [2021-10-16 02:51:58,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-16 02:51:58,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:51:58,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-16 02:51:58,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=217, Unknown=6, NotChecked=66, Total=380 [2021-10-16 02:51:58,370 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) [2021-10-16 02:52:07,484 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ sign_extend 32) (_ bv1 32))) (.cse7 ((_ sign_extend 32) (_ bv0 32)))) (and (= .cse0 c_ULTIMATE.start_main_~t~0) (let ((.cse1 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse4 (bvmul .cse0 .cse0)) (.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))))))))) (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) (= .cse0 c_ULTIMATE.start_main_~s~0) (= .cse7 c_ULTIMATE.start_main_~a~0) (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) is different from true [2021-10-16 02:52:17,823 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) (= 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 [2021-10-16 02:54:07,544 WARN L207 SmtUtils]: Spent 20.26 s on a formula simplification that was a NOOP. DAG size: 68 [2021-10-16 02:54:18,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:54:18,715 INFO L93 Difference]: Finished difference Result 63 states and 67 transitions. [2021-10-16 02:54:18,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-16 02:54:18,804 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 [2021-10-16 02:54:18,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:54:18,804 INFO L225 Difference]: With dead ends: 63 [2021-10-16 02:54:18,805 INFO L226 Difference]: Without dead ends: 47 [2021-10-16 02:54:18,806 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 121 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 145888.1ms TimeCoverageRelationStatistics Valid=167, Invalid=386, Unknown=15, NotChecked=188, Total=756 [2021-10-16 02:54:18,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-16 02:54:18,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-16 02:54:18,819 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) [2021-10-16 02:54:18,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-10-16 02:54:18,820 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 25 [2021-10-16 02:54:18,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:54:18,820 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-10-16 02:54:18,821 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) [2021-10-16 02:54:18,821 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-10-16 02:54:18,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-16 02:54:18,822 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:54:18,823 INFO L512 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-10-16 02:54:18,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:54:19,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:54:19,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-16 02:54:19,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:54:19,437 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)] === [2021-10-16 02:54:19,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:54:19,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1602839570, now seen corresponding path program 2 times [2021-10-16 02:54:19,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:54:19,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293733979] [2021-10-16 02:54:19,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:54:19,438 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:54:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:54:19,440 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:54:19,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-10-16 02:54:19,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:54:19,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:54:19,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:54:19,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:21,655 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-16 02:54:21,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:22,803 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-16 02:54:22,804 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:54:22,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293733979] [2021-10-16 02:54:22,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293733979] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:54:22,804 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [33574792] [2021-10-16 02:54:22,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:54:22,805 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:54:22,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:54:22,824 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:54:22,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-10-16 02:54:23,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:54:23,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:54:23,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-16 02:54:23,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:25,902 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:25,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:54:51,002 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:54:51,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [33574792] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:54:51,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770426561] [2021-10-16 02:54:51,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 02:54:51,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:54:51,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:54:51,004 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:54:51,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-16 02:54:51,662 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 02:54:51,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 02:54:51,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-16 02:54:51,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:54:56,826 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-16 02:54:56,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:56:06,251 WARN L207 SmtUtils]: Spent 6.66 s on a formula simplification that was a NOOP. DAG size: 43 [2021-10-16 02:57:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 33 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-16 02:57:14,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770426561] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:57:14,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:57:14,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 8, 11, 11] total 36 [2021-10-16 02:57:14,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756954035] [2021-10-16 02:57:14,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-16 02:57:14,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:57:14,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-16 02:57:14,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=1048, Unknown=2, NotChecked=0, Total=1260 [2021-10-16 02:57:14,328 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 36 states, 36 states have (on average 4.666666666666667) internal successors, (168), 36 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:57:29,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:57:29,485 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-10-16 02:57:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-16 02:57:29,487 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 4.666666666666667) internal successors, (168), 36 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-10-16 02:57:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:57:29,488 INFO L225 Difference]: With dead ends: 47 [2021-10-16 02:57:29,488 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:57:29,489 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 181 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 108614.7ms TimeCoverageRelationStatistics Valid=303, Invalid=1335, Unknown=2, NotChecked=0, Total=1640 [2021-10-16 02:57:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:57:29,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:57:29,490 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) [2021-10-16 02:57:29,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:57:29,491 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2021-10-16 02:57:29,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:57:29,491 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:57:29,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.666666666666667) internal successors, (168), 36 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:57:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:57:29,492 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:57:29,495 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:29,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:29,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:29,496 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:29,497 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:29,497 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:57:29,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:57:29,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2021-10-16 02:57:29,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-16 02:57:30,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:57:30,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:57:30,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:30,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:30,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:30,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:30,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:30,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:30,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:30,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:57:58,532 WARN L207 SmtUtils]: Spent 20.47 s on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2021-10-16 02:58:04,002 WARN L207 SmtUtils]: Spent 5.47 s on a formula simplification. DAG size of input: 67 DAG size of output: 25 [2021-10-16 02:58:06,360 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:06,361 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:06,361 INFO L860 garLoopResultBuilder]: At program point L48(lines 20 49) the Hoare annotation is: true [2021-10-16 02:58:06,361 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:58:06,362 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:06,362 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:58:06,362 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:58:06,362 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:06,362 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:06,363 INFO L853 garLoopResultBuilder]: At program point L12-2(lines 11 17) the Hoare annotation is: (let ((.cse8 ((_ sign_extend 32) (_ bv2 32))) (.cse2 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse4 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse7 (bvmul (_ bv2 64) .cse2)) (.cse5 (bvsle ULTIMATE.start_main_~n~0 (_ bv5 32))) (.cse3 ((_ sign_extend 32) (_ bv0 32))) (.cse6 (= ULTIMATE.start_main_~t~0 (bvadd .cse2 (bvmul ULTIMATE.start_main_~a~0 .cse8))))) (or (and .cse0 .cse1 (= .cse2 ULTIMATE.start_main_~s~0) (= .cse3 ULTIMATE.start_main_~a~0) .cse4 .cse5 .cse6) (and .cse0 .cse1 (= (bvadd .cse3 .cse7) ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse2)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse2 .cse2))) .cse4 .cse5 .cse6) (and .cse0 .cse1 .cse4 (= (bvadd .cse7 .cse8) ULTIMATE.start_main_~s~0) .cse5 (= ULTIMATE.start_main_~a~0 (bvadd .cse3 .cse2)) .cse6)))) [2021-10-16 02:58:06,363 INFO L857 garLoopResultBuilder]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:06,363 INFO L857 garLoopResultBuilder]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-10-16 02:58:06,364 INFO L853 garLoopResultBuilder]: At program point L12-5(lines 11 17) the Hoare annotation is: (let ((.cse5 ((_ sign_extend 32) (_ bv2 32))) (.cse8 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse7 ((_ sign_extend 32) (_ bv0 32))) (.cse4 (bvmul (_ bv2 64) .cse8)) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse6 (bvsle ULTIMATE.start_main_~n~0 (_ bv5 32))) (.cse9 (= ULTIMATE.start_main_~t~0 (bvadd .cse8 (bvmul ULTIMATE.start_main_~a~0 .cse5))))) (or (and .cse0 .cse1 .cse2 .cse3 (= (bvadd .cse4 .cse5) ULTIMATE.start_main_~s~0) .cse6 (= ULTIMATE.start_main_~a~0 (bvadd .cse7 .cse8)) .cse9) (and .cse0 .cse1 .cse2 (= .cse8 ULTIMATE.start_main_~s~0) (= .cse7 ULTIMATE.start_main_~a~0) .cse3 .cse6 .cse9) (and .cse0 .cse1 .cse2 (= (bvadd .cse7 .cse4) ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse8)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse8 .cse8))) .cse3 .cse6 .cse9)))) [2021-10-16 02:58:06,364 INFO L857 garLoopResultBuilder]: For program point L12-6(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:06,364 INFO L853 garLoopResultBuilder]: At program point L12-8(lines 36 37) the Hoare annotation is: (let ((.cse5 ((_ sign_extend 32) (_ bv2 32))) (.cse8 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse1 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse2 (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) (.cse7 ((_ sign_extend 32) (_ bv0 32))) (.cse4 (bvmul (_ bv2 64) .cse8)) (.cse3 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse6 (bvsle ULTIMATE.start_main_~n~0 (_ bv5 32))) (.cse9 (= ULTIMATE.start_main_~t~0 (bvadd .cse8 (bvmul ULTIMATE.start_main_~a~0 .cse5))))) (or (and .cse0 .cse1 .cse2 .cse3 (= (bvadd .cse4 .cse5) ULTIMATE.start_main_~s~0) .cse6 (= ULTIMATE.start_main_~a~0 (bvadd .cse7 .cse8)) .cse9) (and .cse0 .cse1 .cse2 (= .cse8 ULTIMATE.start_main_~s~0) (= .cse7 ULTIMATE.start_main_~a~0) .cse3 .cse6 .cse9) (and .cse0 .cse1 .cse2 (= (bvadd .cse7 .cse4) ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse8)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse8 .cse8))) .cse3 .cse6 .cse9)))) [2021-10-16 02:58:06,364 INFO L857 garLoopResultBuilder]: For program point L12-9(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:06,365 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)))) [2021-10-16 02:58:06,365 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:58:06,365 INFO L857 garLoopResultBuilder]: For program point L12-12(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:06,365 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))))) [2021-10-16 02:58:06,366 INFO L857 garLoopResultBuilder]: For program point L12-15(lines 12 15) no Hoare annotation was computed. [2021-10-16 02:58:06,366 INFO L860 garLoopResultBuilder]: At program point L12-17(lines 11 17) the Hoare annotation is: true [2021-10-16 02:58:06,366 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:06,366 INFO L857 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:06,367 INFO L857 garLoopResultBuilder]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:06,367 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:06,367 INFO L857 garLoopResultBuilder]: For program point L13-3(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:06,367 INFO L857 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-10-16 02:58:06,367 INFO L857 garLoopResultBuilder]: For program point L13-4(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:06,368 INFO L857 garLoopResultBuilder]: For program point L13-5(lines 13 14) no Hoare annotation was computed. [2021-10-16 02:58:06,368 INFO L853 garLoopResultBuilder]: At program point L30-2(lines 30 42) the Hoare annotation is: (let ((.cse6 ((_ sign_extend 32) (_ bv0 32))) (.cse3 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse1 (= .cse3 ULTIMATE.start_main_~t~0)) (.cse4 (= .cse6 ULTIMATE.start_main_~a~0)) (.cse10 ((_ sign_extend 32) (_ bv2 32)))) (let ((.cse0 (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32))) (.cse2 (= ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32))) (.cse8 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) (.cse9 (or (and .cse1 .cse4) (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~t~0 (bvadd .cse3 (bvmul ULTIMATE.start_main_~a~0 .cse10)))))) (.cse7 (bvmul (_ bv2 64) .cse3)) (.cse5 (bvsle ULTIMATE.start_main_~n~0 (_ bv5 32)))) (or (and .cse0 .cse1 .cse2 (= .cse3 ULTIMATE.start_main_~s~0) .cse4 .cse5) (and .cse0 .cse2 (= (bvadd .cse6 .cse7) ULTIMATE.start_main_~a~0) (= ULTIMATE.start_main_~s~0 (bvadd (bvmul (_ bv2 64) (bvmul ULTIMATE.start_main_~a~0 .cse3)) (bvmul ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~a~0) (bvmul .cse3 .cse3))) .cse8 .cse9 .cse5) (and .cse0 .cse2 .cse8 .cse9 (= (bvadd .cse7 .cse10) ULTIMATE.start_main_~s~0) .cse5 (= ULTIMATE.start_main_~a~0 (bvadd .cse6 .cse3))))))) [2021-10-16 02:58:06,368 INFO L857 garLoopResultBuilder]: For program point L30-3(lines 30 42) no Hoare annotation was computed. [2021-10-16 02:58:06,368 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-10-16 02:58:06,374 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:58:06,398 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) [2021-10-16 02:58:06,418 INFO L168 Benchmark]: Toolchain (without parser) took 675763.25 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 45.1 MB in the beginning and 54.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 45.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:06,418 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory is still 32.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:06,419 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.69 ms. Allocated memory is still 67.1 MB. Free memory was 44.9 MB in the beginning and 48.9 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:06,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.15 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 47.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:06,420 INFO L168 Benchmark]: Boogie Preprocessor took 61.85 ms. Allocated memory is still 67.1 MB. Free memory was 47.2 MB in the beginning and 46.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:06,423 INFO L168 Benchmark]: RCFGBuilder took 1087.90 ms. Allocated memory is still 67.1 MB. Free memory was 45.9 MB in the beginning and 35.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:06,424 INFO L168 Benchmark]: TraceAbstraction took 674149.60 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 34.8 MB in the beginning and 54.9 MB in the end (delta: -20.1 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:06,426 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 52.4 MB. Free memory is still 32.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 375.69 ms. Allocated memory is still 67.1 MB. Free memory was 44.9 MB in the beginning and 48.9 MB in the end (delta: -4.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.15 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 47.2 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.85 ms. Allocated memory is still 67.1 MB. Free memory was 47.2 MB in the beginning and 46.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1087.90 ms. Allocated memory is still 67.1 MB. Free memory was 45.9 MB in the beginning and 35.3 MB in the end (delta: 10.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 674149.60 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 34.8 MB in the beginning and 54.9 MB in the end (delta: -20.1 MB). Peak memory consumption was 37.7 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: 674051.1ms, OverallIterations: 7, TraceHistogramMax: 5, EmptinessCheckTime: 15.9ms, AutomataDifference: 197180.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 36261.6ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 102 SDtfs, 315 SDslu, 209 SDs, 0 SdLazy, 663 SolverSat, 289 SolverUnsat, 44 SolverUnknown, 0 SolverNotchecked, 113121.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 546 GetRequests, 433 SyntacticMatches, 9 SemanticMatches, 104 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 268392.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=5, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 100.3ms AutomataMinimizationTime, 7 MinimizatonAttempts, 48 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 30 NumberOfFragments, 625 HoareAnnotationTreeSize, 8 FomulaSimplifications, 301 FormulaSimplificationTreeSizeReduction, 309.5ms HoareSimplificationTime, 8 FomulaSimplificationsInter, 1674 FormulaSimplificationTreeSizeReductionInter, 35938.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 117.5ms SsaConstructionTime, 2430.4ms SatisfiabilityAnalysisTime, 433662.3ms InterpolantComputationTime, 268 NumberOfCodeBlocks, 268 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 510 ConstructedInterpolants, 3 QuantifiedInterpolants, 10564 SizeOfPredicates, 58 NumberOfNonLiveVariables, 734 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 182/486 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && cond == 1bv32) && ~bvsle64(n, 5bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 5bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && cond == 1bv32) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && ~bvsle64(n, 5bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((~bvsge32(n, 0bv32) && ~sign_extendFrom8To32(1bv32) == t) && cond == 1bv32) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && ~bvsle64(n, 5bv32)) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) && ~bvsle64(n, 5bv32))) || ((((((~bvsge32(n, 0bv32) && cond == 1bv32) && cond == 1bv32) && ((~sign_extendFrom8To32(1bv32) == t && ~sign_extendFrom8To32(0bv32) == a) || (!(cond == 0bv32) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))))) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && ~bvsle64(n, 5bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && cond == 1bv32) && ~bvadd16(~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32)), ~sign_extendFrom8To32(2bv32)) == s) && ~bvsle64(n, 5bv32)) && a == ~bvadd16(~sign_extendFrom8To32(0bv32), ~sign_extendFrom8To32(1bv32))) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && ~sign_extendFrom8To32(1bv32) == s) && ~sign_extendFrom8To32(0bv32) == a) && cond == 1bv32) && ~bvsle64(n, 5bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32))))) || (((((((~bvsge32(n, 0bv32) && cond == 1bv32) && !(cond == 0bv32)) && ~bvadd16(~sign_extendFrom8To32(0bv32), ~bvmul64(2bv64, ~sign_extendFrom8To32(1bv32))) == a) && s == ~bvadd16(~bvmul64(2bv64, ~bvmul64(a, ~sign_extendFrom8To32(1bv32))), ~bvmul64(a, a), ~bvmul64(~sign_extendFrom8To32(1bv32), ~sign_extendFrom8To32(1bv32)))) && cond == 1bv32) && ~bvsle64(n, 5bv32)) && t == ~bvadd16(~sign_extendFrom8To32(1bv32), ~bvmul64(a, ~sign_extendFrom8To32(2bv32)))) - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 64) (_ BitVec 64)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:58:06,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb386637-4d05-4e0b-be85-72b312813cd0/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...