./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested5-1.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_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/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_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/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_50566528-eec0-4716-a64b-053081100e28/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 88d908807c562516d59e3074a7f6cea9889fd89a ........................................................................................................................................................................................................................................................................................................................................................ 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_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/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_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/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_50566528-eec0-4716-a64b-053081100e28/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 88d908807c562516d59e3074a7f6cea9889fd89a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:00:53,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:00:53,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:00:53,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:00:53,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:00:53,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:00:53,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:00:53,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:00:53,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:00:53,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:00:53,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:00:53,240 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:00:53,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:00:53,244 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:00:53,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:00:53,254 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:00:53,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:00:53,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:00:53,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:00:53,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:00:53,284 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:00:53,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:00:53,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:00:53,292 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:00:53,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:00:53,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:00:53,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:00:53,308 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:00:53,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:00:53,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:00:53,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:00:53,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:00:53,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:00:53,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:00:53,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:00:53,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:00:53,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:00:53,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:00:53,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:00:53,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:00:53,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:00:53,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 03:00:53,380 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:00:53,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:00:53,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:00:53,383 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:00:53,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:00:53,383 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:00:53,384 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 03:00:53,384 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:00:53,392 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:00:53,392 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 03:00:53,394 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 03:00:53,394 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:00:53,395 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 03:00:53,395 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 03:00:53,395 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 03:00:53,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:00:53,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:00:53,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 03:00:53,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:00:53,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:00:53,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:00:53,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:00:53,399 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:00:53,399 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:00:53,399 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:00:53,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:00:53,400 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:00:53,400 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:00:53,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:00:53,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:00:53,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:00:53,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:00:53,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:00:53,404 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:00:53,405 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 03:00:53,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 03:00:53,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:00:53,406 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:00:53,406 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:00:53,406 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_50566528-eec0-4716-a64b-053081100e28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d908807c562516d59e3074a7f6cea9889fd89a [2021-10-16 03:00:53,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:00:53,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:00:53,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:00:53,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:00:53,867 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:00:53,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2021-10-16 03:00:53,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data/d5aa4e770/3d9d55b6f6fe4df192c3dc8d992f8932/FLAG7c22d8c5d [2021-10-16 03:00:54,583 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:00:54,584 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2021-10-16 03:00:54,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data/d5aa4e770/3d9d55b6f6fe4df192c3dc8d992f8932/FLAG7c22d8c5d [2021-10-16 03:00:54,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data/d5aa4e770/3d9d55b6f6fe4df192c3dc8d992f8932 [2021-10-16 03:00:54,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:00:54,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:00:54,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:00:54,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:00:54,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:00:54,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:00:54" (1/1) ... [2021-10-16 03:00:54,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b638759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:54, skipping insertion in model container [2021-10-16 03:00:54,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:00:54" (1/1) ... [2021-10-16 03:00:54,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:00:54,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:00:55,065 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_50566528-eec0-4716-a64b-053081100e28/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2021-10-16 03:00:55,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:00:55,094 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:00:55,109 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_50566528-eec0-4716-a64b-053081100e28/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2021-10-16 03:00:55,117 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:00:55,134 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:00:55,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55 WrapperNode [2021-10-16 03:00:55,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:00:55,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:00:55,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:00:55,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:00:55,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,156 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,178 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:00:55,179 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:00:55,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:00:55,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:00:55,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,206 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,208 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:00:55,209 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:00:55,210 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:00:55,210 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:00:55,211 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (1/1) ... [2021-10-16 03:00:55,221 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:00:55,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:00:55,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:00:55,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:00:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:00:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:00:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 03:00:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:00:55,809 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:00:55,809 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-16 03:00:55,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:00:55 BoogieIcfgContainer [2021-10-16 03:00:55,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:00:55,831 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:00:55,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:00:55,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:00:55,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:00:54" (1/3) ... [2021-10-16 03:00:55,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e9bc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:00:55, skipping insertion in model container [2021-10-16 03:00:55,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:00:55" (2/3) ... [2021-10-16 03:00:55,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79e9bc94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:00:55, skipping insertion in model container [2021-10-16 03:00:55,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:00:55" (3/3) ... [2021-10-16 03:00:55,840 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2021-10-16 03:00:55,847 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:00:55,847 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:00:55,928 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:00:55,936 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 03:00:55,936 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:00:55,954 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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 03:00:55,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 03:00:55,961 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:00:55,961 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:00:55,962 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:00:55,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:00:55,970 INFO L82 PathProgramCache]: Analyzing trace with hash 194610778, now seen corresponding path program 1 times [2021-10-16 03:00:55,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:00:55,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717135209] [2021-10-16 03:00:55,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:00:55,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:00:56,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:00:56,227 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 03:00:56,228 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:00:56,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717135209] [2021-10-16 03:00:56,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717135209] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 03:00:56,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:00:56,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 03:00:56,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571820916] [2021-10-16 03:00:56,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 03:00:56,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 03:00:56,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 03:00:56,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:00:56,258 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 03:00:56,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:00:56,292 INFO L93 Difference]: Finished difference Result 27 states and 41 transitions. [2021-10-16 03:00:56,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 03:00:56,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 03:00:56,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:00:56,305 INFO L225 Difference]: With dead ends: 27 [2021-10-16 03:00:56,306 INFO L226 Difference]: Without dead ends: 15 [2021-10-16 03:00:56,309 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 03:00:56,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-10-16 03:00:56,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2021-10-16 03:00:56,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 03:00:56,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2021-10-16 03:00:56,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 15 transitions. Word has length 8 [2021-10-16 03:00:56,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:00:56,350 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-10-16 03:00:56,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 03:00:56,351 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-10-16 03:00:56,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 03:00:56,351 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:00:56,352 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:00:56,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 03:00:56,352 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:00:56,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:00:56,353 INFO L82 PathProgramCache]: Analyzing trace with hash 1737735212, now seen corresponding path program 1 times [2021-10-16 03:00:56,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 03:00:56,354 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867340950] [2021-10-16 03:00:56,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:00:56,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 03:00:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:00:56,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:00:56,473 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 03:00:56,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867340950] [2021-10-16 03:00:56,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867340950] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 03:00:56,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754300332] [2021-10-16 03:00:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:00:56,475 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:00:56,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:00:56,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:00:56,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 03:00:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:00:56,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-16 03:00:56,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:00:56,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:00:56,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:00:56,764 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 03:00:56,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754300332] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:00:56,766 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [270209039] [2021-10-16 03:00:56,795 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-16 03:00:56,795 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 03:00:56,801 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 03:00:56,809 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 03:00:56,810 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 03:00:56,855 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:00:56,869 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:00:56,870 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:00:56,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 03:00:56,880 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 03:00:56,881 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:00:56,888 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 03:00:56,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-10-16 03:00:56,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:00:56,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:00:56,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 03:00:56,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 03:00:56,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:00:56,996 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:00:57,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:00:57,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 03:00:57,010 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 03:00:57,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:00:57,099 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:00:57,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 03:00:57,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 134 [2021-10-16 03:00:57,114 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 03:00:57,116 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:131, output treesize:134 [2021-10-16 03:00:57,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 03:00:57,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:00:57,318 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| 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 03:00:57,323 INFO L168 Benchmark]: Toolchain (without parser) took 2445.99 ms. Allocated memory was 113.2 MB in the beginning and 151.0 MB in the end (delta: 37.7 MB). Free memory was 87.5 MB in the beginning and 94.5 MB in the end (delta: -7.0 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2021-10-16 03:00:57,323 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory is still 91.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:00:57,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.66 ms. Allocated memory is still 113.2 MB. Free memory was 87.4 MB in the beginning and 77.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:00:57,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.73 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 76.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:00:57,325 INFO L168 Benchmark]: Boogie Preprocessor took 29.70 ms. Allocated memory is still 113.2 MB. Free memory was 76.1 MB in the beginning and 75.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:00:57,326 INFO L168 Benchmark]: RCFGBuilder took 610.38 ms. Allocated memory is still 113.2 MB. Free memory was 75.0 MB in the beginning and 63.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:00:57,326 INFO L168 Benchmark]: TraceAbstraction took 1490.00 ms. Allocated memory was 113.2 MB in the beginning and 151.0 MB in the end (delta: 37.7 MB). Free memory was 62.7 MB in the beginning and 94.5 MB in the end (delta: -31.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-16 03:00:57,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 113.2 MB. Free memory is still 91.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 257.66 ms. Allocated memory is still 113.2 MB. Free memory was 87.4 MB in the beginning and 77.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.73 ms. Allocated memory is still 113.2 MB. Free memory was 77.7 MB in the beginning and 76.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.70 ms. Allocated memory is still 113.2 MB. Free memory was 76.1 MB in the beginning and 75.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 610.38 ms. Allocated memory is still 113.2 MB. Free memory was 75.0 MB in the beginning and 63.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1490.00 ms. Allocated memory was 113.2 MB in the beginning and 151.0 MB in the end (delta: 37.7 MB). Free memory was 62.7 MB in the beginning and 94.5 MB in the end (delta: -31.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: 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 03:00:57,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 03:01:00,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 03:01:00,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 03:01:00,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 03:01:00,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 03:01:00,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 03:01:00,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 03:01:00,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 03:01:00,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 03:01:00,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 03:01:00,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 03:01:00,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 03:01:00,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 03:01:00,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 03:01:00,196 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 03:01:00,201 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 03:01:00,203 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 03:01:00,204 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 03:01:00,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 03:01:00,216 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 03:01:00,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 03:01:00,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 03:01:00,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 03:01:00,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 03:01:00,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 03:01:00,238 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 03:01:00,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 03:01:00,241 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 03:01:00,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 03:01:00,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 03:01:00,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 03:01:00,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 03:01:00,248 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 03:01:00,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 03:01:00,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 03:01:00,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 03:01:00,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 03:01:00,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 03:01:00,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 03:01:00,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 03:01:00,276 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 03:01:00,283 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 03:01:00,337 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 03:01:00,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 03:01:00,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 03:01:00,340 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 03:01:00,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 03:01:00,340 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 03:01:00,341 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 03:01:00,341 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 03:01:00,341 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 03:01:00,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 03:01:00,344 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 03:01:00,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 03:01:00,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 03:01:00,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 03:01:00,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 03:01:00,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 03:01:00,347 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 03:01:00,347 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 03:01:00,347 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 03:01:00,348 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 03:01:00,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 03:01:00,348 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 03:01:00,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 03:01:00,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 03:01:00,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 03:01:00,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 03:01:00,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:01:00,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 03:01:00,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 03:01:00,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 03:01:00,351 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 03:01:00,352 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 03:01:00,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 03:01:00,352 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 03:01:00,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 03:01:00,353 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_50566528-eec0-4716-a64b-053081100e28/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d908807c562516d59e3074a7f6cea9889fd89a [2021-10-16 03:01:00,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 03:01:00,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 03:01:00,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 03:01:00,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 03:01:00,851 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 03:01:00,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loops-crafted-1/nested5-1.c [2021-10-16 03:01:00,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data/8a60bfdc3/9e4d82634c5a40438faee0e44d9a10cc/FLAG90d3a8b1f [2021-10-16 03:01:01,514 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 03:01:01,516 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/sv-benchmarks/c/loops-crafted-1/nested5-1.c [2021-10-16 03:01:01,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data/8a60bfdc3/9e4d82634c5a40438faee0e44d9a10cc/FLAG90d3a8b1f [2021-10-16 03:01:01,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/data/8a60bfdc3/9e4d82634c5a40438faee0e44d9a10cc [2021-10-16 03:01:01,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 03:01:01,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 03:01:01,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 03:01:01,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 03:01:01,891 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 03:01:01,892 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:01:01" (1/1) ... [2021-10-16 03:01:01,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@114fbbae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:01, skipping insertion in model container [2021-10-16 03:01:01,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 03:01:01" (1/1) ... [2021-10-16 03:01:01,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 03:01:01,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 03:01:02,086 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_50566528-eec0-4716-a64b-053081100e28/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2021-10-16 03:01:02,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:01:02,118 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 03:01:02,133 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_50566528-eec0-4716-a64b-053081100e28/sv-benchmarks/c/loops-crafted-1/nested5-1.c[321,334] [2021-10-16 03:01:02,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 03:01:02,196 INFO L208 MainTranslator]: Completed translation [2021-10-16 03:01:02,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02 WrapperNode [2021-10-16 03:01:02,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 03:01:02,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 03:01:02,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 03:01:02,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 03:01:02,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,240 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 03:01:02,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 03:01:02,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 03:01:02,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 03:01:02,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,301 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 03:01:02,315 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 03:01:02,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 03:01:02,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 03:01:02,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (1/1) ... [2021-10-16 03:01:02,329 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 03:01:02,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:01:02,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 03:01:02,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 03:01:02,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 03:01:02,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 03:01:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 03:01:02,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 03:01:02,733 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 03:01:02,733 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-16 03:01:02,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:01:02 BoogieIcfgContainer [2021-10-16 03:01:02,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 03:01:02,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 03:01:02,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 03:01:02,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 03:01:02,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 03:01:01" (1/3) ... [2021-10-16 03:01:02,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49058408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:01:02, skipping insertion in model container [2021-10-16 03:01:02,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 03:01:02" (2/3) ... [2021-10-16 03:01:02,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49058408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 03:01:02, skipping insertion in model container [2021-10-16 03:01:02,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:01:02" (3/3) ... [2021-10-16 03:01:02,751 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2021-10-16 03:01:02,758 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 03:01:02,759 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 03:01:02,847 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 03:01:02,862 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 03:01:02,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 03:01:02,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 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 03:01:02,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 03:01:02,897 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:01:02,897 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:01:02,898 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:01:02,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:01:02,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1296464707, now seen corresponding path program 1 times [2021-10-16 03:01:02,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:01:02,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845497769] [2021-10-16 03:01:02,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:01:02,937 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:01:02,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:01:02,941 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:01:02,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 03:01:03,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:01:03,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 03:01:03,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:01:03,231 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 03:01:03,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:01:03,327 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 03:01:03,328 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:01:03,328 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845497769] [2021-10-16 03:01:03,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845497769] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:01:03,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:01:03,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 03:01:03,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768807588] [2021-10-16 03:01:03,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 03:01:03,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:01:03,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 03:01:03,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:01:03,362 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.6666666666666667) internal successors, (30), 19 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) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 03:01:03,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:01:03,451 INFO L93 Difference]: Finished difference Result 52 states and 83 transitions. [2021-10-16 03:01:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 03:01:03,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 10 [2021-10-16 03:01:03,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:01:03,464 INFO L225 Difference]: With dead ends: 52 [2021-10-16 03:01:03,464 INFO L226 Difference]: Without dead ends: 26 [2021-10-16 03:01:03,469 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 03:01:03,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-16 03:01:03,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2021-10-16 03:01:03,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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 03:01:03,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-10-16 03:01:03,516 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 10 [2021-10-16 03:01:03,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:01:03,517 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-10-16 03:01:03,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 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 03:01:03,518 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-10-16 03:01:03,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-16 03:01:03,519 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:01:03,519 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:01:03,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 03:01:03,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:01:03,734 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:01:03,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:01:03,741 INFO L82 PathProgramCache]: Analyzing trace with hash -383728831, now seen corresponding path program 1 times [2021-10-16 03:01:03,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:01:03,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2143105707] [2021-10-16 03:01:03,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:01:03,744 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:01:03,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:01:03,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:01:03,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 03:01:03,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:01:03,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 03:01:03,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:01:03,989 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 03:01:03,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:01:04,101 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 03:01:04,101 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:01:04,101 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2143105707] [2021-10-16 03:01:04,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2143105707] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:01:04,104 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [601289296] [2021-10-16 03:01:04,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:01:04,104 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 03:01:04,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 03:01:04,111 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 03:01:04,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-16 03:01:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:01:04,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 03:01:04,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:01:04,369 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 03:01:04,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:01:04,522 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 03:01:04,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [601289296] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:01:04,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959780577] [2021-10-16 03:01:04,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 03:01:04,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:01:04,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 03:01:04,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 03:01:04,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 03:01:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 03:01:04,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 03:01:04,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:01:04,716 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 03:01:04,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:01:04,787 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 03:01:04,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959780577] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 03:01:04,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 03:01:04,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 6, 6, 6] total 13 [2021-10-16 03:01:04,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778701111] [2021-10-16 03:01:04,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-16 03:01:04,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:01:04,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-16 03:01:04,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-10-16 03:01:04,793 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 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 03:01:05,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:01:05,276 INFO L93 Difference]: Finished difference Result 67 states and 87 transitions. [2021-10-16 03:01:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-16 03:01:05,277 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 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 14 [2021-10-16 03:01:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:01:05,279 INFO L225 Difference]: With dead ends: 67 [2021-10-16 03:01:05,279 INFO L226 Difference]: Without dead ends: 50 [2021-10-16 03:01:05,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 397.8ms TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2021-10-16 03:01:05,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-10-16 03:01:05,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 27. [2021-10-16 03:01:05,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 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 03:01:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2021-10-16 03:01:05,294 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 14 [2021-10-16 03:01:05,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:01:05,295 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2021-10-16 03:01:05,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 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 03:01:05,295 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2021-10-16 03:01:05,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 03:01:05,297 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 03:01:05,297 INFO L512 BasicCegarLoop]: trace histogram [6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 03:01:05,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-10-16 03:01:05,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-16 03:01:05,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-16 03:01:05,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 03:01:05,903 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 03:01:05,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 03:01:05,904 INFO L82 PathProgramCache]: Analyzing trace with hash -359687607, now seen corresponding path program 2 times [2021-10-16 03:01:05,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 03:01:05,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1271082149] [2021-10-16 03:01:05,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-16 03:01:05,909 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 03:01:05,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 03:01:05,910 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 03:01:05,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 03:01:06,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-16 03:01:06,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-16 03:01:06,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-16 03:01:06,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 03:01:06,259 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-16 03:01:06,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 03:01:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-16 03:01:06,464 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 03:01:06,464 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1271082149] [2021-10-16 03:01:06,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1271082149] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 03:01:06,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 03:01:06,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-16 03:01:06,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666399684] [2021-10-16 03:01:06,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-16 03:01:06,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 03:01:06,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-16 03:01:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-16 03:01:06,467 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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 03:01:06,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 03:01:06,660 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2021-10-16 03:01:06,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-16 03:01:06,661 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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 22 [2021-10-16 03:01:06,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 03:01:06,662 INFO L225 Difference]: With dead ends: 48 [2021-10-16 03:01:06,662 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 03:01:06,663 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 209.5ms TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-16 03:01:06,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 03:01:06,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 03:01:06,663 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 03:01:06,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 03:01:06,664 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-16 03:01:06,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 03:01:06,664 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 03:01:06,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 10 states have internal predecessors, (19), 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 03:01:06,664 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 03:01:06,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 03:01:06,667 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 03:01:06,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 03:01:06,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 03:01:06,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 03:01:06,884 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:01:06,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:01:06,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:01:06,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:01:06,992 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:01:06,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:01:07,001 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 03:01:07,351 INFO L857 garLoopResultBuilder]: For program point L23-2(line 23) no Hoare annotation was computed. [2021-10-16 03:01:07,352 INFO L853 garLoopResultBuilder]: At program point L23-3(line 23) the Hoare annotation is: (or (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) [2021-10-16 03:01:07,352 INFO L857 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2021-10-16 03:01:07,352 INFO L857 garLoopResultBuilder]: For program point L19-2(lines 19 25) no Hoare annotation was computed. [2021-10-16 03:01:07,352 INFO L853 garLoopResultBuilder]: At program point L19-3(lines 19 25) the Hoare annotation is: (or (and (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~v~0 (_ bv0 32))) (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (and (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (exists ((ULTIMATE.start_main_~v~0 (_ BitVec 32))) (and (not (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (= (bvurem ULTIMATE.start_main_~v~0 (_ bv4 32)) ULTIMATE.start___VERIFIER_assert_~cond))))) [2021-10-16 03:01:07,353 INFO L857 garLoopResultBuilder]: For program point L19-4(lines 19 25) no Hoare annotation was computed. [2021-10-16 03:01:07,353 INFO L857 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-16 03:01:07,353 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 03:01:07,353 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 03:01:07,353 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 03:01:07,354 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-10-16 03:01:07,354 INFO L857 garLoopResultBuilder]: For program point L20-2(lines 20 25) no Hoare annotation was computed. [2021-10-16 03:01:07,354 INFO L853 garLoopResultBuilder]: At program point L20-3(lines 20 25) the Hoare annotation is: (or (and (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~v~0 (_ bv0 32))) (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (and (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (exists ((ULTIMATE.start_main_~v~0 (_ BitVec 32))) (and (not (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (= (bvurem ULTIMATE.start_main_~v~0 (_ bv4 32)) ULTIMATE.start___VERIFIER_assert_~cond))))) [2021-10-16 03:01:07,354 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 03:01:07,355 INFO L857 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-10-16 03:01:07,355 INFO L853 garLoopResultBuilder]: At program point L21-3(lines 21 25) the Hoare annotation is: (or (and (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~v~0 (_ bv0 32))) (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (and (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (exists ((ULTIMATE.start_main_~v~0 (_ BitVec 32))) (and (not (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (= (bvurem ULTIMATE.start_main_~v~0 (_ bv4 32)) ULTIMATE.start___VERIFIER_assert_~cond))))) [2021-10-16 03:01:07,362 INFO L860 garLoopResultBuilder]: At program point L26(lines 12 27) the Hoare annotation is: true [2021-10-16 03:01:07,364 INFO L853 garLoopResultBuilder]: At program point L22-2(lines 22 25) the Hoare annotation is: (or (and (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= ULTIMATE.start_main_~v~0 (_ bv0 32))) (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (and (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (exists ((ULTIMATE.start_main_~v~0 (_ BitVec 32))) (and (not (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (= (bvurem ULTIMATE.start_main_~v~0 (_ bv4 32)) ULTIMATE.start___VERIFIER_assert_~cond))))) [2021-10-16 03:01:07,364 INFO L857 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-16 03:01:07,366 INFO L853 garLoopResultBuilder]: At program point L6-2(lines 1 27) the Hoare annotation is: (and (not (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (exists ((ULTIMATE.start_main_~v~0 (_ BitVec 32))) (and (not (bvult ULTIMATE.start_main_~v~0 (_ bv10 32))) (bvult (bvadd (_ bv4294967295 32) ULTIMATE.start_main_~v~0) (_ bv10 32)) (= (bvurem ULTIMATE.start_main_~v~0 (_ bv4 32)) ULTIMATE.start___VERIFIER_assert_~cond)))) [2021-10-16 03:01:07,372 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 03:01:07,382 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,383 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,384 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,407 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,412 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,413 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,427 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,428 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,435 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,436 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,437 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,438 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,438 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 03:01:07 BoogieIcfgContainer [2021-10-16 03:01:07,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 03:01:07,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 03:01:07,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 03:01:07,443 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 03:01:07,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 03:01:02" (3/4) ... [2021-10-16 03:01:07,448 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 03:01:07,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 03:01:07,464 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 03:01:07,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:01:07,465 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 03:01:07,505 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(cond == 0bv32) || v == 0bv32) && ~bvult32(v, 10bv32)) || (~bvult32(~bvadd64(4294967295bv32, v), 10bv32) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond)) [2021-10-16 03:01:07,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(cond == 0bv32) || v == 0bv32) && ~bvult32(v, 10bv32)) || (~bvult32(~bvadd64(4294967295bv32, v), 10bv32) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond)) [2021-10-16 03:01:07,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(cond == 0bv32) || v == 0bv32) && ~bvult32(v, 10bv32)) || (~bvult32(~bvadd64(4294967295bv32, v), 10bv32) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond)) [2021-10-16 03:01:07,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(cond == 0bv32) || v == 0bv32) && ~bvult32(v, 10bv32)) || (~bvult32(~bvadd64(4294967295bv32, v), 10bv32) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond)) [2021-10-16 03:01:07,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~bvult32(v, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, v), 10bv32)) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond) [2021-10-16 03:01:07,535 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 03:01:07,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 03:01:07,544 INFO L168 Benchmark]: Toolchain (without parser) took 5658.48 ms. Allocated memory was 56.6 MB in the beginning and 88.1 MB in the end (delta: 31.5 MB). Free memory was 35.6 MB in the beginning and 62.3 MB in the end (delta: -26.8 MB). Peak memory consumption was 1.2 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:07,544 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 56.6 MB. Free memory was 37.6 MB in the beginning and 37.5 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:01:07,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.94 ms. Allocated memory was 56.6 MB in the beginning and 88.1 MB in the end (delta: 31.5 MB). Free memory was 35.3 MB in the beginning and 72.5 MB in the end (delta: -37.2 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:07,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.22 ms. Allocated memory is still 88.1 MB. Free memory was 72.5 MB in the beginning and 71.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:07,549 INFO L168 Benchmark]: Boogie Preprocessor took 47.90 ms. Allocated memory is still 88.1 MB. Free memory was 71.0 MB in the beginning and 69.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:01:07,550 INFO L168 Benchmark]: RCFGBuilder took 420.77 ms. Allocated memory is still 88.1 MB. Free memory was 69.7 MB in the beginning and 59.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:07,550 INFO L168 Benchmark]: TraceAbstraction took 4704.08 ms. Allocated memory is still 88.1 MB. Free memory was 59.0 MB in the beginning and 65.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2021-10-16 03:01:07,551 INFO L168 Benchmark]: Witness Printer took 96.62 ms. Allocated memory is still 88.1 MB. Free memory was 65.2 MB in the beginning and 62.3 MB in the end (delta: 2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 03:01:07,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 56.6 MB. Free memory was 37.6 MB in the beginning and 37.5 MB in the end (delta: 44.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 310.94 ms. Allocated memory was 56.6 MB in the beginning and 88.1 MB in the end (delta: 31.5 MB). Free memory was 35.3 MB in the beginning and 72.5 MB in the end (delta: -37.2 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.22 ms. Allocated memory is still 88.1 MB. Free memory was 72.5 MB in the beginning and 71.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.90 ms. Allocated memory is still 88.1 MB. Free memory was 71.0 MB in the beginning and 69.9 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 420.77 ms. Allocated memory is still 88.1 MB. Free memory was 69.7 MB in the beginning and 59.5 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4704.08 ms. Allocated memory is still 88.1 MB. Free memory was 59.0 MB in the beginning and 65.2 MB in the end (delta: -6.2 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. * Witness Printer took 96.62 ms. Allocated memory is still 88.1 MB. Free memory was 65.2 MB in the beginning and 62.3 MB in the end (delta: 2.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] * 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: 7]: 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, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4527.7ms, OverallIterations: 3, TraceHistogramMax: 6, EmptinessCheckTime: 17.6ms, AutomataDifference: 814.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 471.4ms, InitialAbstractionConstructionTime: 19.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 75 SDtfs, 157 SDslu, 243 SDs, 0 SdLazy, 182 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 241.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 643.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=2, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 42.6ms AutomataMinimizationTime, 3 MinimizatonAttempts, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 32 NumberOfFragments, 176 HoareAnnotationTreeSize, 7 FomulaSimplifications, 499 FormulaSimplificationTreeSizeReduction, 124.5ms HoareSimplificationTime, 7 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 338.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 63.8ms SsaConstructionTime, 136.1ms SatisfiabilityAnalysisTime, 1399.4ms InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 1 QuantifiedInterpolants, 340 SizeOfPredicates, 10 NumberOfNonLiveVariables, 219 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 72/96 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 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant [2021-10-16 03:01:07,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] Derived loop invariant: ((!(cond == 0bv32) || v == 0bv32) && ~bvult32(v, 10bv32)) || (~bvult32(~bvadd64(4294967295bv32, v), 10bv32) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond)) - InvariantResult [Line: 1]: Loop Invariant [2021-10-16 03:01:07,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,587 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,589 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,589 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,590 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] Derived loop invariant: (!~bvult32(v, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, v), 10bv32)) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond) - InvariantResult [Line: 20]: Loop Invariant [2021-10-16 03:01:07,591 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,591 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,591 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,592 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,593 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,593 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] Derived loop invariant: ((!(cond == 0bv32) || v == 0bv32) && ~bvult32(v, 10bv32)) || (~bvult32(~bvadd64(4294967295bv32, v), 10bv32) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond)) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ~bvult32(~bvadd64(4294967295bv32, v), 10bv32) || ~bvult32(v, 10bv32) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2021-10-16 03:01:07,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,596 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,596 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,596 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] Derived loop invariant: ((!(cond == 0bv32) || v == 0bv32) && ~bvult32(v, 10bv32)) || (~bvult32(~bvadd64(4294967295bv32, v), 10bv32) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond)) - InvariantResult [Line: 19]: Loop Invariant [2021-10-16 03:01:07,597 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] [2021-10-16 03:01:07,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~v~0,QUANTIFIED] Derived loop invariant: ((!(cond == 0bv32) || v == 0bv32) && ~bvult32(v, 10bv32)) || (~bvult32(~bvadd64(4294967295bv32, v), 10bv32) && (\exists ULTIMATE.start_main_~v~0 : bv32 :: (!~bvult32(ULTIMATE.start_main_~v~0, 10bv32) && ~bvult32(~bvadd64(4294967295bv32, ULTIMATE.start_main_~v~0), 10bv32)) && ~bvurem32(ULTIMATE.start_main_~v~0, 4bv32) == cond)) RESULT: Ultimate proved your program to be correct! [2021-10-16 03:01:07,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50566528-eec0-4716-a64b-053081100e28/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...