./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn1f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 18b341884f23a5462ed7b5a2994c7faf53737afb439f1d86e003040fe93a66eb .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 19:41:40,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:41:40,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:41:40,259 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:41:40,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:41:40,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:41:40,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:41:40,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:41:40,278 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:41:40,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:41:40,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:41:40,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:41:40,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:41:40,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:41:40,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:41:40,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:41:40,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:41:40,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:41:40,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:41:40,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:41:40,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:41:40,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:41:40,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:41:40,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:41:40,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:41:40,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:41:40,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:41:40,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:41:40,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:41:40,327 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:41:40,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:41:40,328 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:41:40,329 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:41:40,330 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:41:40,331 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:41:40,331 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:41:40,332 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:41:40,332 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:41:40,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:41:40,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:41:40,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:41:40,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 19:41:40,359 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:41:40,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:41:40,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:41:40,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:41:40,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:41:40,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:41:40,361 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:41:40,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:41:40,362 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:41:40,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:41:40,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:41:40,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:41:40,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 19:41:40,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 19:41:40,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 19:41:40,363 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:41:40,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:41:40,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:41:40,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 19:41:40,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:41:40,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:41:40,365 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 19:41:40,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:41:40,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:41:40,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 19:41:40,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 19:41:40,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:41:40,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 19:41:40,366 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 19:41:40,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 19:41:40,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 19:41:40,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:41:40,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 18b341884f23a5462ed7b5a2994c7faf53737afb439f1d86e003040fe93a66eb [2021-10-21 19:41:40,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:41:40,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:41:40,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:41:40,664 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:41:40,666 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:41:40,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/array-fpi/eqn1f.c [2021-10-21 19:41:40,726 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/data/c984a8c4a/2ba117fb5fe24f5e8e92ddec0dde8888/FLAG8a94499c9 [2021-10-21 19:41:41,177 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:41:41,178 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/sv-benchmarks/c/array-fpi/eqn1f.c [2021-10-21 19:41:41,196 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/data/c984a8c4a/2ba117fb5fe24f5e8e92ddec0dde8888/FLAG8a94499c9 [2021-10-21 19:41:41,548 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/data/c984a8c4a/2ba117fb5fe24f5e8e92ddec0dde8888 [2021-10-21 19:41:41,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:41:41,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:41:41,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:41:41,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:41:41,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:41:41,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b0004ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41, skipping insertion in model container [2021-10-21 19:41:41,559 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,567 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:41:41,581 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:41:41,749 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_fe5e16e7-c24f-4f2c-98a5-395b75740299/sv-benchmarks/c/array-fpi/eqn1f.c[588,601] [2021-10-21 19:41:41,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:41:41,774 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:41:41,786 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_fe5e16e7-c24f-4f2c-98a5-395b75740299/sv-benchmarks/c/array-fpi/eqn1f.c[588,601] [2021-10-21 19:41:41,794 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:41:41,807 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:41:41,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41 WrapperNode [2021-10-21 19:41:41,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:41:41,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:41:41,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:41:41,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:41:41,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,844 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:41:41,845 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:41:41,845 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:41:41,845 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:41:41,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:41:41,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:41:41,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:41:41,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:41:41,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (1/1) ... [2021-10-21 19:41:41,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 19:41:41,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:41,910 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 19:41:41,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 19:41:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:41:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:41:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 19:41:41,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-21 19:41:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:41:41,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:41:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 19:41:42,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:41:42,170 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-21 19:41:42,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:41:42 BoogieIcfgContainer [2021-10-21 19:41:42,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:41:42,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 19:41:42,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 19:41:42,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 19:41:42,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 07:41:41" (1/3) ... [2021-10-21 19:41:42,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f29bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:41:42, skipping insertion in model container [2021-10-21 19:41:42,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:41:41" (2/3) ... [2021-10-21 19:41:42,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55f29bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 07:41:42, skipping insertion in model container [2021-10-21 19:41:42,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:41:42" (3/3) ... [2021-10-21 19:41:42,200 INFO L111 eAbstractionObserver]: Analyzing ICFG eqn1f.c [2021-10-21 19:41:42,205 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 19:41:42,205 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 19:41:42,281 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 19:41:42,288 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-10-21 19:41:42,289 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 19:41:42,303 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:42,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:41:42,309 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:42,310 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:42,310 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:42,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:42,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2021-10-21 19:41:42,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:42,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671221160] [2021-10-21 19:41:42,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:42,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:42,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:42,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:42,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:42,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671221160] [2021-10-21 19:41:42,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671221160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:42,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:42,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 19:41:42,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2824407] [2021-10-21 19:41:42,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 19:41:42,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:42,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 19:41:42,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:41:42,494 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2021-10-21 19:41:42,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:42,509 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2021-10-21 19:41:42,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 19:41:42,510 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 12 [2021-10-21 19:41:42,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:42,519 INFO L225 Difference]: With dead ends: 38 [2021-10-21 19:41:42,519 INFO L226 Difference]: Without dead ends: 17 [2021-10-21 19:41:42,521 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 19:41:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-21 19:41:42,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-21 19:41:42,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 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) [2021-10-21 19:41:42,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-10-21 19:41:42,552 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2021-10-21 19:41:42,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:42,553 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-21 19:41:42,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2021-10-21 19:41:42,553 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-10-21 19:41:42,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 19:41:42,554 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:42,554 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:42,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 19:41:42,555 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:42,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:42,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2021-10-21 19:41:42,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:42,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895108420] [2021-10-21 19:41:42,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:42,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:42,583 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:42,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [634797015] [2021-10-21 19:41:42,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:42,584 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:42,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:42,590 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:42,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-21 19:41:42,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:42,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-21 19:41:42,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:42,823 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-10-21 19:41:42,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-10-21 19:41:43,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:43,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:43,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895108420] [2021-10-21 19:41:43,005 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:43,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [634797015] [2021-10-21 19:41:43,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [634797015] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:43,007 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:43,007 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:41:43,008 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598563984] [2021-10-21 19:41:43,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:41:43,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:43,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:41:43,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:41:43,014 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2021-10-21 19:41:43,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:43,116 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2021-10-21 19:41:43,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:41:43,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 12 [2021-10-21 19:41:43,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:43,120 INFO L225 Difference]: With dead ends: 34 [2021-10-21 19:41:43,120 INFO L226 Difference]: Without dead ends: 32 [2021-10-21 19:41:43,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 43.1ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:41:43,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-21 19:41:43,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-10-21 19:41:43,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:43,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2021-10-21 19:41:43,132 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2021-10-21 19:41:43,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:43,133 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2021-10-21 19:41:43,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2021-10-21 19:41:43,138 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-10-21 19:41:43,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 19:41:43,140 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:43,140 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:43,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:43,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:43,362 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:43,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:43,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1755224028, now seen corresponding path program 1 times [2021-10-21 19:41:43,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:43,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327685421] [2021-10-21 19:41:43,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:43,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:43,405 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:43,405 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183063933] [2021-10-21 19:41:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:43,406 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:43,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-21 19:41:43,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:43,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:41:43,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:43,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:43,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:43,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327685421] [2021-10-21 19:41:43,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:43,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183063933] [2021-10-21 19:41:43,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183063933] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:43,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:43,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:41:43,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943373569] [2021-10-21 19:41:43,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:41:43,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:43,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:41:43,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:41:43,571 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:43,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:43,647 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2021-10-21 19:41:43,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:41:43,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-21 19:41:43,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:43,650 INFO L225 Difference]: With dead ends: 49 [2021-10-21 19:41:43,650 INFO L226 Difference]: Without dead ends: 40 [2021-10-21 19:41:43,651 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.5ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:41:43,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-21 19:41:43,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 23. [2021-10-21 19:41:43,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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) [2021-10-21 19:41:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-10-21 19:41:43,663 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2021-10-21 19:41:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:43,664 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-10-21 19:41:43,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:43,664 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-10-21 19:41:43,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-21 19:41:43,665 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:43,666 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:43,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:43,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:43,879 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:43,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:43,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1842440164, now seen corresponding path program 1 times [2021-10-21 19:41:43,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:43,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400848684] [2021-10-21 19:41:43,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:43,880 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:43,914 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:43,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [168438691] [2021-10-21 19:41:43,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:43,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:43,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:43,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:43,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-21 19:41:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:43,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-21 19:41:43,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:44,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:44,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:44,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400848684] [2021-10-21 19:41:44,055 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:44,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168438691] [2021-10-21 19:41:44,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168438691] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:44,056 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:41:44,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-10-21 19:41:44,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921872024] [2021-10-21 19:41:44,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-21 19:41:44,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:44,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:41:44,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:41:44,060 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:44,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:44,130 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2021-10-21 19:41:44,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:41:44,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-21 19:41:44,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:44,135 INFO L225 Difference]: With dead ends: 44 [2021-10-21 19:41:44,136 INFO L226 Difference]: Without dead ends: 37 [2021-10-21 19:41:44,136 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.3ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:41:44,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-21 19:41:44,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 24. [2021-10-21 19:41:44,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:44,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-10-21 19:41:44,140 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 14 [2021-10-21 19:41:44,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:44,141 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-10-21 19:41:44,141 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:44,141 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-10-21 19:41:44,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:41:44,142 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:44,142 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:44,165 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-21 19:41:44,355 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:44,355 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:44,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:44,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1667884396, now seen corresponding path program 1 times [2021-10-21 19:41:44,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:44,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133239914] [2021-10-21 19:41:44,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:44,372 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:44,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [291957845] [2021-10-21 19:41:44,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:44,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:44,374 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:44,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-21 19:41:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:44,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-21 19:41:44,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:44,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:44,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133239914] [2021-10-21 19:41:44,553 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:44,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291957845] [2021-10-21 19:41:44,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291957845] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:41:44,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:41:44,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:41:44,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291917349] [2021-10-21 19:41:44,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-21 19:41:44,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:44,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:41:44,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:41:44,556 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-21 19:41:44,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:44,616 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2021-10-21 19:41:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:41:44,616 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) Word has length 16 [2021-10-21 19:41:44,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:44,617 INFO L225 Difference]: With dead ends: 41 [2021-10-21 19:41:44,617 INFO L226 Difference]: Without dead ends: 27 [2021-10-21 19:41:44,637 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 37.3ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:41:44,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-21 19:41:44,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2021-10-21 19:41:44,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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) [2021-10-21 19:41:44,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-10-21 19:41:44,645 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2021-10-21 19:41:44,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:44,645 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-10-21 19:41:44,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 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) [2021-10-21 19:41:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-10-21 19:41:44,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-21 19:41:44,647 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:44,647 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:44,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:44,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:44,851 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:44,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:44,851 INFO L82 PathProgramCache]: Analyzing trace with hash 586911962, now seen corresponding path program 1 times [2021-10-21 19:41:44,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:44,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397186171] [2021-10-21 19:41:44,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:44,870 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:44,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998389070] [2021-10-21 19:41:44,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:44,871 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:44,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:44,885 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:44,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-21 19:41:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:44,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-21 19:41:44,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:45,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-21 19:41:45,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-10-21 19:41:45,087 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-10-21 19:41:45,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-10-21 19:41:45,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:45,462 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-10-21 19:41:45,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 70 treesize of output 70 [2021-10-21 19:41:46,124 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:46,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:46,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397186171] [2021-10-21 19:41:46,125 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:46,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998389070] [2021-10-21 19:41:46,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998389070] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:46,126 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:41:46,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-21 19:41:46,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118332104] [2021-10-21 19:41:46,126 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:41:46,126 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:46,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:41:46,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:41:46,127 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-21 19:41:46,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:46,447 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2021-10-21 19:41:46,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:41:46,448 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) Word has length 16 [2021-10-21 19:41:46,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:46,448 INFO L225 Difference]: With dead ends: 44 [2021-10-21 19:41:46,449 INFO L226 Difference]: Without dead ends: 42 [2021-10-21 19:41:46,449 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 259.0ms TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:41:46,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-21 19:41:46,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 28. [2021-10-21 19:41:46,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 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) [2021-10-21 19:41:46,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-10-21 19:41:46,455 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2021-10-21 19:41:46,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:46,455 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-10-21 19:41:46,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.0) internal successors, (16), 8 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) [2021-10-21 19:41:46,455 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-10-21 19:41:46,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 19:41:46,456 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:46,456 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:46,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:46,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-10-21 19:41:46,657 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:46,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:46,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1267903976, now seen corresponding path program 2 times [2021-10-21 19:41:46,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:46,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754526508] [2021-10-21 19:41:46,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:46,658 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:46,691 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:46,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [613779099] [2021-10-21 19:41:46,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:41:46,691 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:46,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:46,694 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:46,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-21 19:41:46,803 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:41:46,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:41:46,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:41:46,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:46,893 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:46,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:46,893 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754526508] [2021-10-21 19:41:46,894 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:46,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613779099] [2021-10-21 19:41:46,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613779099] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:46,894 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:41:46,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-21 19:41:46,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957071004] [2021-10-21 19:41:46,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:41:46,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:46,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:41:46,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:41:46,896 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:46,984 INFO L93 Difference]: Finished difference Result 61 states and 67 transitions. [2021-10-21 19:41:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-21 19:41:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-21 19:41:46,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:46,988 INFO L225 Difference]: With dead ends: 61 [2021-10-21 19:41:46,989 INFO L226 Difference]: Without dead ends: 52 [2021-10-21 19:41:46,989 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 43.1ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:41:46,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-21 19:41:47,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 28. [2021-10-21 19:41:47,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 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) [2021-10-21 19:41:47,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-10-21 19:41:47,004 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 18 [2021-10-21 19:41:47,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:47,005 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-10-21 19:41:47,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:47,005 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-10-21 19:41:47,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-21 19:41:47,006 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:47,006 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:47,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:47,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-21 19:41:47,231 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:47,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:47,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1174519208, now seen corresponding path program 3 times [2021-10-21 19:41:47,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:47,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111058147] [2021-10-21 19:41:47,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:47,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:47,253 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:47,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1875554900] [2021-10-21 19:41:47,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:41:47,253 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:47,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:47,262 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:47,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-21 19:41:47,360 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-21 19:41:47,360 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:41:47,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-21 19:41:47,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:47,436 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:47,436 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:47,436 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111058147] [2021-10-21 19:41:47,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:47,437 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875554900] [2021-10-21 19:41:47,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875554900] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:47,437 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:41:47,437 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-10-21 19:41:47,437 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262362197] [2021-10-21 19:41:47,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-21 19:41:47,438 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:47,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:41:47,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:41:47,440 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:47,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:47,529 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2021-10-21 19:41:47,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:41:47,529 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-21 19:41:47,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:47,530 INFO L225 Difference]: With dead ends: 56 [2021-10-21 19:41:47,530 INFO L226 Difference]: Without dead ends: 49 [2021-10-21 19:41:47,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 33.6ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-21 19:41:47,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-21 19:41:47,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 30. [2021-10-21 19:41:47,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1379310344827587) internal successors, (33), 29 states have internal predecessors, (33), 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) [2021-10-21 19:41:47,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-10-21 19:41:47,543 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 18 [2021-10-21 19:41:47,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:47,543 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-10-21 19:41:47,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:47,544 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-10-21 19:41:47,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:41:47,545 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:47,545 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:47,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:47,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:47,759 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:47,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:47,760 INFO L82 PathProgramCache]: Analyzing trace with hash 798963152, now seen corresponding path program 1 times [2021-10-21 19:41:47,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:47,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492752889] [2021-10-21 19:41:47,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:47,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:47,773 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:47,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60560447] [2021-10-21 19:41:47,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:47,773 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:47,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:47,774 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:47,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-21 19:41:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:41:47,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-21 19:41:47,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:47,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-21 19:41:47,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-10-21 19:41:48,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:48,004 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-10-21 19:41:48,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 32 [2021-10-21 19:41:48,141 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:41:48,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:48,152 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-10-21 19:41:48,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 51 treesize of output 44 [2021-10-21 19:41:48,478 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-10-21 19:41:48,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 38 [2021-10-21 19:41:48,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:48,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:48,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492752889] [2021-10-21 19:41:48,498 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:48,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [60560447] [2021-10-21 19:41:48,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [60560447] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:48,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:41:48,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-21 19:41:48,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449320499] [2021-10-21 19:41:48,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:41:48,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:48,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:41:48,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:41:48,501 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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) [2021-10-21 19:41:48,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:48,814 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2021-10-21 19:41:48,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-21 19:41:48,815 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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 20 [2021-10-21 19:41:48,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:48,815 INFO L225 Difference]: With dead ends: 45 [2021-10-21 19:41:48,815 INFO L226 Difference]: Without dead ends: 43 [2021-10-21 19:41:48,816 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 312.0ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-10-21 19:41:48,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-10-21 19:41:48,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 34. [2021-10-21 19:41:48,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.121212121212121) internal successors, (37), 33 states have internal predecessors, (37), 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) [2021-10-21 19:41:48,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2021-10-21 19:41:48,820 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2021-10-21 19:41:48,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:48,820 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2021-10-21 19:41:48,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 9 states have internal predecessors, (20), 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) [2021-10-21 19:41:48,821 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2021-10-21 19:41:48,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-21 19:41:48,821 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:48,821 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:48,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:49,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:49,031 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:49,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:49,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1786143722, now seen corresponding path program 4 times [2021-10-21 19:41:49,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:49,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495265072] [2021-10-21 19:41:49,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:49,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:49,050 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:49,050 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920769122] [2021-10-21 19:41:49,051 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-21 19:41:49,051 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:49,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:49,052 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:49,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-21 19:41:49,206 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-21 19:41:49,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:41:49,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-21 19:41:49,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:49,248 INFO L354 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2021-10-21 19:41:49,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 23 [2021-10-21 19:41:49,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-21 19:41:49,314 INFO L354 Elim1Store]: treesize reduction 74, result has 26.0 percent of original size [2021-10-21 19:41:49,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 52 [2021-10-21 19:41:49,496 INFO L354 Elim1Store]: treesize reduction 200, result has 28.3 percent of original size [2021-10-21 19:41:49,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 116 [2021-10-21 19:41:50,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:41:50,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:50,100 INFO L354 Elim1Store]: treesize reduction 144, result has 0.7 percent of original size [2021-10-21 19:41:50,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 95 treesize of output 101 [2021-10-21 19:41:50,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:50,536 INFO L354 Elim1Store]: treesize reduction 752, result has 9.6 percent of original size [2021-10-21 19:41:50,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 129 treesize of output 131 [2021-10-21 19:41:53,628 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:53,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:53,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495265072] [2021-10-21 19:41:53,629 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:53,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920769122] [2021-10-21 19:41:53,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920769122] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:53,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:41:53,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-10-21 19:41:53,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120188220] [2021-10-21 19:41:53,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-21 19:41:53,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:53,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-21 19:41:53,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-10-21 19:41:53,631 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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) [2021-10-21 19:41:56,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:56,839 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-10-21 19:41:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-21 19:41:56,840 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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 20 [2021-10-21 19:41:56,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:56,841 INFO L225 Difference]: With dead ends: 69 [2021-10-21 19:41:56,841 INFO L226 Difference]: Without dead ends: 67 [2021-10-21 19:41:56,841 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 746.4ms TimeCoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2021-10-21 19:41:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-10-21 19:41:56,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 43. [2021-10-21 19:41:56,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.1428571428571428) internal successors, (48), 42 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:41:56,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2021-10-21 19:41:56,848 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 20 [2021-10-21 19:41:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:56,848 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2021-10-21 19:41:56,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 11 states have internal predecessors, (20), 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) [2021-10-21 19:41:56,849 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2021-10-21 19:41:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-21 19:41:56,850 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:56,850 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:56,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:57,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:57,061 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:57,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:57,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1598333292, now seen corresponding path program 5 times [2021-10-21 19:41:57,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:57,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650551435] [2021-10-21 19:41:57,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:57,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:57,076 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:57,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1027983723] [2021-10-21 19:41:57,076 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-21 19:41:57,077 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:57,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:57,078 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:57,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-21 19:41:57,278 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-21 19:41:57,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:41:57,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-21 19:41:57,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:57,395 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:41:57,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:57,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650551435] [2021-10-21 19:41:57,396 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:57,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027983723] [2021-10-21 19:41:57,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027983723] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:57,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:41:57,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-10-21 19:41:57,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119862157] [2021-10-21 19:41:57,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-21 19:41:57,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:57,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-21 19:41:57,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-21 19:41:57,398 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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) [2021-10-21 19:41:57,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:57,538 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2021-10-21 19:41:57,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-21 19:41:57,538 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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 [2021-10-21 19:41:57,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:57,539 INFO L225 Difference]: With dead ends: 82 [2021-10-21 19:41:57,539 INFO L226 Difference]: Without dead ends: 75 [2021-10-21 19:41:57,540 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 61.8ms TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:41:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-10-21 19:41:57,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 45. [2021-10-21 19:41:57,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.1363636363636365) internal successors, (50), 44 states have internal predecessors, (50), 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) [2021-10-21 19:41:57,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2021-10-21 19:41:57,546 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 22 [2021-10-21 19:41:57,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:57,546 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2021-10-21 19:41:57,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 9 states have internal predecessors, (22), 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) [2021-10-21 19:41:57,546 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2021-10-21 19:41:57,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 19:41:57,552 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:57,552 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:57,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:57,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:57,753 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:57,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:57,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1197174726, now seen corresponding path program 2 times [2021-10-21 19:41:57,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:57,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317262708] [2021-10-21 19:41:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:57,754 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:57,771 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:57,771 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [907554307] [2021-10-21 19:41:57,771 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-21 19:41:57,771 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:57,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:57,772 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:57,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-21 19:41:57,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-21 19:41:57,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:41:57,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-21 19:41:57,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:58,089 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-21 19:41:58,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:41:58,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317262708] [2021-10-21 19:41:58,089 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:41:58,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [907554307] [2021-10-21 19:41:58,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [907554307] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:41:58,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:41:58,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-10-21 19:41:58,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322497376] [2021-10-21 19:41:58,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-21 19:41:58,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:41:58,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-21 19:41:58,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-10-21 19:41:58,091 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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) [2021-10-21 19:41:58,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:41:58,205 INFO L93 Difference]: Finished difference Result 69 states and 74 transitions. [2021-10-21 19:41:58,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-21 19:41:58,205 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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 24 [2021-10-21 19:41:58,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:41:58,206 INFO L225 Difference]: With dead ends: 69 [2021-10-21 19:41:58,206 INFO L226 Difference]: Without dead ends: 49 [2021-10-21 19:41:58,207 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 65.7ms TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-10-21 19:41:58,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-10-21 19:41:58,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 36. [2021-10-21 19:41:58,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1428571428571428) internal successors, (40), 35 states have internal predecessors, (40), 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) [2021-10-21 19:41:58,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2021-10-21 19:41:58,211 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 24 [2021-10-21 19:41:58,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:41:58,212 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2021-10-21 19:41:58,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 8 states have internal predecessors, (24), 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) [2021-10-21 19:41:58,212 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2021-10-21 19:41:58,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-21 19:41:58,213 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 19:41:58,213 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:41:58,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-21 19:41:58,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-21 19:41:58,427 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 19:41:58,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:41:58,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1232945932, now seen corresponding path program 3 times [2021-10-21 19:41:58,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:41:58,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411659020] [2021-10-21 19:41:58,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:41:58,428 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:41:58,441 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-21 19:41:58,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666947605] [2021-10-21 19:41:58,441 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-21 19:41:58,441 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-21 19:41:58,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:41:58,442 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-21 19:41:58,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-21 19:41:58,630 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-21 19:41:58,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-21 19:41:58,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-21 19:41:58,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 19:41:58,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-21 19:41:58,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-10-21 19:41:58,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:58,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:58,722 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:41:58,727 INFO L354 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2021-10-21 19:41:58,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2021-10-21 19:41:58,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:58,854 INFO L354 Elim1Store]: treesize reduction 186, result has 16.2 percent of original size [2021-10-21 19:41:58,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 59 treesize of output 63 [2021-10-21 19:41:59,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:59,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:41:59,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:59,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:59,045 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:41:59,045 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:41:59,106 INFO L354 Elim1Store]: treesize reduction 335, result has 9.0 percent of original size [2021-10-21 19:41:59,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 24 case distinctions, treesize of input 90 treesize of output 103 [2021-10-21 19:41:59,294 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-21 19:41:59,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-21 19:41:59,457 INFO L354 Elim1Store]: treesize reduction 648, result has 10.2 percent of original size [2021-10-21 19:41:59,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 36 case distinctions, treesize of input 106 treesize of output 114 [2021-10-21 19:42:00,009 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-21 19:42:00,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 23 [2021-10-21 19:42:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:42:00,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:42:00,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411659020] [2021-10-21 19:42:00,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-21 19:42:00,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666947605] [2021-10-21 19:42:00,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666947605] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-21 19:42:00,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-10-21 19:42:00,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-10-21 19:42:00,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780217140] [2021-10-21 19:42:00,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-21 19:42:00,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:42:00,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-21 19:42:00,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-10-21 19:42:00,046 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 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) [2021-10-21 19:42:00,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:42:00,812 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2021-10-21 19:42:00,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-21 19:42:00,813 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 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 24 [2021-10-21 19:42:00,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 19:42:00,813 INFO L225 Difference]: With dead ends: 46 [2021-10-21 19:42:00,813 INFO L226 Difference]: Without dead ends: 0 [2021-10-21 19:42:00,814 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 681.2ms TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-10-21 19:42:00,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-21 19:42:00,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-21 19:42:00,814 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) [2021-10-21 19:42:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-21 19:42:00,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2021-10-21 19:42:00,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 19:42:00,815 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-21 19:42:00,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 14 states have internal predecessors, (24), 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) [2021-10-21 19:42:00,815 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-21 19:42:00,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-21 19:42:00,817 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 19:42:00,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-21 19:42:01,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-10-21 19:42:01,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-21 19:42:01,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:42:01,038 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:42:01,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:42:01,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-21 19:42:02,683 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-10-21 19:42:02,683 INFO L857 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-10-21 19:42:02,683 INFO L857 garLoopResultBuilder]: For program point L15-3(line 15) no Hoare annotation was computed. [2021-10-21 19:42:02,683 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-21 19:42:02,683 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-21 19:42:02,683 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-21 19:42:02,683 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-10-21 19:42:02,684 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2021-10-21 19:42:02,684 INFO L857 garLoopResultBuilder]: For program point L12(lines 12 14) no Hoare annotation was computed. [2021-10-21 19:42:02,684 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-21 19:42:02,684 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 33 36) no Hoare annotation was computed. [2021-10-21 19:42:02,684 INFO L853 garLoopResultBuilder]: At program point L33-3(lines 33 36) the Hoare annotation is: (let ((.cse8 (select |#memory_int| ULTIMATE.start_main_~a~0.base))) (let ((.cse7 (select .cse8 ULTIMATE.start_main_~a~0.offset))) (let ((.cse0 (= 2 .cse7)) (.cse1 (= (select (select |#memory_int| ULTIMATE.start_main_~b~0.base) ULTIMATE.start_main_~b~0.offset) 1)) (.cse2 (= ULTIMATE.start_main_~a~0.offset 0)) (.cse3 (= (+ 20 .cse7) (select .cse8 (+ ULTIMATE.start_main_~a~0.offset 8)))) (.cse4 (= ULTIMATE.start_main_~b~0.offset 0))) (or (and .cse0 (<= 1 ULTIMATE.start_main_~i~0) .cse1 .cse2 (<= ULTIMATE.start_main_~i~0 2) (< 1 ~N~0) .cse3 .cse4) (and .cse0 .cse1 .cse2 (= ULTIMATE.start_main_~i~0 1) .cse4) (and .cse0 .cse1 (<= 3 ULTIMATE.start_main_~i~0) .cse2 .cse3 .cse4 (< 2 ~N~0) (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse5 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse6 (* ULTIMATE.start_main_~i~0 8))) (= (select .cse5 (+ .cse6 ULTIMATE.start_main_~a~0.offset)) (+ (select .cse5 (+ .cse6 ULTIMATE.start_main_~a~0.offset (- 8))) 20)))))))))) [2021-10-21 19:42:02,684 INFO L857 garLoopResultBuilder]: For program point L33-4(lines 33 36) no Hoare annotation was computed. [2021-10-21 19:42:02,684 INFO L857 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2021-10-21 19:42:02,684 INFO L857 garLoopResultBuilder]: For program point L38-2(lines 38 41) no Hoare annotation was computed. [2021-10-21 19:42:02,685 INFO L853 garLoopResultBuilder]: At program point L38-3(lines 38 41) the Hoare annotation is: (let ((.cse28 (select |#memory_int| ULTIMATE.start_main_~b~0.base)) (.cse27 (select |#memory_int| ULTIMATE.start_main_~a~0.base))) (let ((.cse15 (select .cse27 (+ ULTIMATE.start_main_~a~0.offset 8))) (.cse8 (select .cse28 (+ ULTIMATE.start_main_~b~0.offset 8))) (.cse9 (select .cse28 ULTIMATE.start_main_~b~0.offset)) (.cse24 (select .cse27 ULTIMATE.start_main_~a~0.offset))) (let ((.cse11 (= 2 .cse24)) (.cse10 (= .cse9 1)) (.cse12 (= ULTIMATE.start_main_~i~0 1)) (.cse5 (<= ~N~0 2)) (.cse0 (<= 1 ULTIMATE.start_main_~i~0)) (.cse4 (<= ULTIMATE.start_main_~i~0 2)) (.cse16 (exists ((v_ULTIMATE.start_main_~i~0_37 Int)) (and (<= 2 v_ULTIMATE.start_main_~i~0_37) (let ((.cse25 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse26 (* v_ULTIMATE.start_main_~i~0_37 8))) (= (select .cse25 (+ ULTIMATE.start_main_~a~0.offset .cse26)) (+ 20 (select .cse25 (+ ULTIMATE.start_main_~a~0.offset .cse26 (- 8))))))))) (.cse1 (= .cse8 (+ .cse9 .cse24))) (.cse2 (= ULTIMATE.start_main_~a~0.offset 0)) (.cse3 (= .cse8 (+ .cse24 1))) (.cse6 (= (+ 20 .cse24) .cse15)) (.cse7 (= ULTIMATE.start_main_~b~0.offset 0)) (.cse17 (< 2 ~N~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (< 1 ~N~0) .cse5 .cse6 .cse7 (= .cse8 (+ .cse9 2))) (and (<= ULTIMATE.start_main_~i~0 1) .cse0 .cse10 (<= ~N~0 1) .cse7) (and .cse11 .cse10 .cse2 .cse12 .cse6 .cse7 (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse13 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse14 (* ULTIMATE.start_main_~i~0 8))) (= (select .cse13 (+ .cse14 ULTIMATE.start_main_~a~0.offset)) (+ (select .cse13 (+ .cse14 ULTIMATE.start_main_~a~0.offset (- 8))) 20)))))) (and .cse11 .cse10 .cse2 .cse12 .cse5 .cse6 .cse7) (and .cse0 (= .cse15 22) .cse16 .cse1 .cse2 .cse3 .cse4 .cse6 .cse7 .cse17) (and (exists ((ULTIMATE.start_main_~a~0.base Int) (v_ULTIMATE.start_main_~i~0_37 Int) (ULTIMATE.start_main_~i~0 Int)) (let ((.cse21 (select |#memory_int| ULTIMATE.start_main_~a~0.base))) (let ((.cse18 (select |#memory_int| ULTIMATE.start_main_~b~0.base)) (.cse19 (select .cse21 0)) (.cse22 (select .cse21 8))) (and (= (select .cse18 (+ ULTIMATE.start_main_~b~0.offset 8)) (+ (select .cse18 ULTIMATE.start_main_~b~0.offset) .cse19)) (<= 2 v_ULTIMATE.start_main_~i~0_37) (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse20 (* ULTIMATE.start_main_~i~0 8))) (= (+ (select .cse18 (+ .cse20 ULTIMATE.start_main_~b~0.offset (- 8))) (select .cse21 (+ .cse20 (- 8)))) (select .cse18 (+ .cse20 ULTIMATE.start_main_~b~0.offset)))) (= .cse22 (+ .cse19 20)) (let ((.cse23 (* v_ULTIMATE.start_main_~i~0_37 8))) (= (select .cse21 .cse23) (+ (select .cse21 (+ .cse23 (- 8))) 20))) (= .cse22 22))))) (<= 3 ULTIMATE.start_main_~i~0) .cse16 .cse1 .cse2 .cse3 .cse6 .cse7 .cse17))))) [2021-10-21 19:42:02,685 INFO L857 garLoopResultBuilder]: For program point L38-4(lines 38 41) no Hoare annotation was computed. [2021-10-21 19:42:02,685 INFO L860 garLoopResultBuilder]: At program point L47(lines 21 48) the Hoare annotation is: true [2021-10-21 19:42:02,685 INFO L857 garLoopResultBuilder]: For program point L43-2(lines 43 46) no Hoare annotation was computed. [2021-10-21 19:42:02,685 INFO L853 garLoopResultBuilder]: At program point L43-3(lines 43 46) the Hoare annotation is: (let ((.cse22 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse20 (select |#memory_int| ULTIMATE.start_main_~b~0.base))) (let ((.cse16 (select .cse20 (+ ULTIMATE.start_main_~b~0.offset 8))) (.cse17 (select .cse20 ULTIMATE.start_main_~b~0.offset)) (.cse18 (select .cse22 ULTIMATE.start_main_~a~0.offset))) (let ((.cse1 (<= ~N~0 1)) (.cse11 (<= 2 ULTIMATE.start_main_~i~0)) (.cse5 (= ULTIMATE.start_main_~i~0 0)) (.cse2 (exists ((ULTIMATE.start_main_~a~0.base Int) (v_ULTIMATE.start_main_~i~0_37 Int) (ULTIMATE.start_main_~i~0 Int)) (let ((.cse28 (select |#memory_int| ULTIMATE.start_main_~a~0.base))) (let ((.cse25 (select |#memory_int| ULTIMATE.start_main_~b~0.base)) (.cse26 (select .cse28 0)) (.cse29 (select .cse28 8))) (and (= (select .cse25 (+ ULTIMATE.start_main_~b~0.offset 8)) (+ (select .cse25 ULTIMATE.start_main_~b~0.offset) .cse26)) (<= 2 v_ULTIMATE.start_main_~i~0_37) (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse27 (* ULTIMATE.start_main_~i~0 8))) (= (+ (select .cse25 (+ .cse27 ULTIMATE.start_main_~b~0.offset (- 8))) (select .cse28 (+ .cse27 (- 8)))) (select .cse25 (+ .cse27 ULTIMATE.start_main_~b~0.offset)))) (= .cse29 (+ .cse26 20)) (let ((.cse30 (* v_ULTIMATE.start_main_~i~0_37 8))) (= (select .cse28 .cse30) (+ (select .cse28 (+ .cse30 (- 8))) 20))) (= .cse29 22)))))) (.cse14 (<= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse15 (exists ((v_ULTIMATE.start_main_~i~0_37 Int)) (and (<= 2 v_ULTIMATE.start_main_~i~0_37) (let ((.cse23 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse24 (* v_ULTIMATE.start_main_~i~0_37 8))) (= (select .cse23 (+ ULTIMATE.start_main_~a~0.offset .cse24)) (+ 20 (select .cse23 (+ ULTIMATE.start_main_~a~0.offset .cse24 (- 8))))))))) (.cse3 (= 2 .cse18)) (.cse0 (<= 1 ULTIMATE.start_main_~i~0)) (.cse4 (= .cse17 1)) (.cse6 (= ULTIMATE.start_main_~a~0.offset 0)) (.cse12 (<= ULTIMATE.start_main_~i~0 2)) (.cse13 (<= ~N~0 2)) (.cse7 (= (+ 20 .cse18) (select .cse22 (+ ULTIMATE.start_main_~a~0.offset 8)))) (.cse8 (= ULTIMATE.start_main_~b~0.offset 0)) (.cse19 (= .cse16 (+ .cse17 2)))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (exists ((ULTIMATE.start_main_~i~0 Int)) (and (<= 2 ULTIMATE.start_main_~i~0) (let ((.cse9 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (.cse10 (* ULTIMATE.start_main_~i~0 8))) (= (select .cse9 (+ .cse10 ULTIMATE.start_main_~a~0.offset)) (+ (select .cse9 (+ .cse10 ULTIMATE.start_main_~a~0.offset (- 8))) 20)))))) (and .cse11 .cse12 .cse13) (and .cse4 .cse5 .cse1 .cse8) (and .cse2 .cse11 .cse14 .cse4 .cse15 (= .cse16 (+ .cse17 .cse18)) .cse6 .cse7 .cse8) (and .cse3 .cse4 .cse5 .cse6 .cse13 .cse7 .cse8 .cse19) (and .cse2 .cse14 .cse4 (let ((.cse21 (* ULTIMATE.start_main_~i~0 8))) (= (+ (select .cse20 (+ .cse21 ULTIMATE.start_main_~b~0.offset (- 8))) (select .cse22 (+ .cse21 ULTIMATE.start_main_~a~0.offset (- 8)))) (select .cse20 (+ .cse21 ULTIMATE.start_main_~b~0.offset)))) .cse15 .cse6 (= ULTIMATE.start_main_~i~0 1) .cse7 .cse8) (and .cse3 (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse0 .cse4 .cse6 .cse12 .cse13 .cse7 .cse8 .cse19))))) [2021-10-21 19:42:02,686 INFO L857 garLoopResultBuilder]: For program point L43-4(lines 43 46) no Hoare annotation was computed. [2021-10-21 19:42:02,690 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 19:42:02,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,704 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,706 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,707 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,724 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,724 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,724 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,724 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,733 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,733 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,734 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,735 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,736 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,736 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,738 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,738 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,738 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,739 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,739 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,739 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,739 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,739 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,740 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,741 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,742 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,758 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,758 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,758 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,758 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,759 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,759 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,759 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,759 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,760 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,760 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,760 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,761 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,762 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,763 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,763 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,763 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,763 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,764 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,764 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,764 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,764 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,765 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,766 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,767 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,768 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,769 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,769 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,769 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 07:42:02 BoogieIcfgContainer [2021-10-21 19:42:02,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 19:42:02,775 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:42:02,775 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:42:02,775 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:42:02,775 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:41:42" (3/4) ... [2021-10-21 19:42:02,779 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-21 19:42:02,789 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-21 19:42:02,790 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-21 19:42:02,790 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:42:02,790 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-21 19:42:02,814 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((2 == unknown-#memory_int-unknown[a][a] && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i <= 2) && 1 < N) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) || ((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && b == 0)) || (((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && 3 <= i) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20)) [2021-10-21 19:42:02,814 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((1 <= i && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && i <= 2) && 1 < N) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2) || ((((i <= 1 && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && N <= 1) && b == 0)) || ((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20))) || ((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((((1 <= i && unknown-#memory_int-unknown[a][a + 8] == 22) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && i <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 3 <= i) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N) [2021-10-21 19:42:02,814 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 <= i && N <= 1) || ((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 2 == unknown-#memory_int-unknown[a][a]) && unknown-#memory_int-unknown[b][b] == 1) && i == 0) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20))) || ((2 <= i && i <= 2) && N <= 2)) || (((unknown-#memory_int-unknown[b][b] == 1 && i == 0) && N <= 1) && b == 0)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 2 <= i) && 0 <= cond) && unknown-#memory_int-unknown[b][b] == 1) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && i == 0) && a == 0) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 0 <= cond) && unknown-#memory_int-unknown[b][b] == 1) && unknown-#memory_int-unknown[b][i * 8 + b + -8] + unknown-#memory_int-unknown[a][i * 8 + a + -8] == unknown-#memory_int-unknown[b][i * 8 + b]) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && a == 0) && i == 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((((2 == unknown-#memory_int-unknown[a][a] && 1 <= cond) && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i <= 2) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2) [2021-10-21 19:42:02,830 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:42:02,830 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:42:02,831 INFO L168 Benchmark]: Toolchain (without parser) took 21278.95 ms. Allocated memory was 117.4 MB in the beginning and 184.5 MB in the end (delta: 67.1 MB). Free memory was 80.2 MB in the beginning and 107.9 MB in the end (delta: -27.8 MB). Peak memory consumption was 39.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:02,832 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 117.4 MB. Free memory is still 96.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:42:02,832 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.14 ms. Allocated memory is still 117.4 MB. Free memory was 79.9 MB in the beginning and 91.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:02,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 117.4 MB. Free memory was 91.6 MB in the beginning and 90.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:42:02,833 INFO L168 Benchmark]: Boogie Preprocessor took 25.03 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 89.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:02,833 INFO L168 Benchmark]: RCFGBuilder took 306.02 ms. Allocated memory is still 117.4 MB. Free memory was 89.0 MB in the beginning and 78.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:02,834 INFO L168 Benchmark]: TraceAbstraction took 20595.54 ms. Allocated memory was 117.4 MB in the beginning and 184.5 MB in the end (delta: 67.1 MB). Free memory was 77.6 MB in the beginning and 111.1 MB in the end (delta: -33.5 MB). Peak memory consumption was 96.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:02,834 INFO L168 Benchmark]: Witness Printer took 55.71 ms. Allocated memory is still 184.5 MB. Free memory was 111.1 MB in the beginning and 107.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:02,836 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 117.4 MB. Free memory is still 96.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.14 ms. Allocated memory is still 117.4 MB. Free memory was 79.9 MB in the beginning and 91.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.15 ms. Allocated memory is still 117.4 MB. Free memory was 91.6 MB in the beginning and 90.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.03 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 89.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 306.02 ms. Allocated memory is still 117.4 MB. Free memory was 89.0 MB in the beginning and 78.1 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20595.54 ms. Allocated memory was 117.4 MB in the beginning and 184.5 MB in the end (delta: 67.1 MB). Free memory was 77.6 MB in the beginning and 111.1 MB in the end (delta: -33.5 MB). Peak memory consumption was 96.4 MB. Max. memory is 16.1 GB. * Witness Printer took 55.71 ms. Allocated memory is still 184.5 MB. Free memory was 111.1 MB in the beginning and 107.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. 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_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,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: 15]: 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20410.4ms, OverallIterations: 13, TraceHistogramMax: 3, EmptinessCheckTime: 24.0ms, AutomataDifference: 5458.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1663.3ms, InitialAbstractionConstructionTime: 10.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 209 SDtfs, 412 SDslu, 494 SDs, 0 SdLazy, 892 SolverSat, 184 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3528.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 262 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 2330.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=11, InterpolantAutomatonStates: 124, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 100.9ms AutomataMinimizationTime, 13 MinimizatonAttempts, 180 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 28 NumberOfFragments, 1321 HoareAnnotationTreeSize, 4 FomulaSimplifications, 1525 FormulaSimplificationTreeSizeReduction, 122.1ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 1418 FormulaSimplificationTreeSizeReductionInter, 1534.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 111.3ms SsaConstructionTime, 284.6ms SatisfiabilityAnalysisTime, 8599.3ms InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 217 ConstructedInterpolants, 36 QuantifiedInterpolants, 3470 SizeOfPredicates, 74 NumberOfNonLiveVariables, 1075 ConjunctsInSsa, 140 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 21/61 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 Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant [2021-10-21 19:42:02,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,863 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,864 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,865 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,865 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,865 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,865 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,865 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,866 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,869 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,873 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,874 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] Derived loop invariant: (((((((((((((1 <= i && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && i <= 2) && 1 < N) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2) || ((((i <= 1 && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && N <= 1) && b == 0)) || ((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20))) || ((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((((1 <= i && unknown-#memory_int-unknown[a][a + 8] == 22) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && i <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 3 <= i) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[a][a] + 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N) - InvariantResult [Line: 33]: Loop Invariant [2021-10-21 19:42:02,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,877 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,878 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] Derived loop invariant: ((((((((2 == unknown-#memory_int-unknown[a][a] && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i <= 2) && 1 < N) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) || ((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i == 1) && b == 0)) || (((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && 3 <= i) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && 2 < N) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20)) - InvariantResult [Line: 43]: Loop Invariant [2021-10-21 19:42:02,879 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,879 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,880 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,880 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,880 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,880 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,881 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,882 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,882 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,882 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,882 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,882 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,883 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,883 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,883 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,883 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,884 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,884 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,884 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,884 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,884 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,885 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,885 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,885 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,885 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,886 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,886 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,886 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,886 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,886 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,887 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,887 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,887 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,887 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,888 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,888 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,888 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,888 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,890 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,893 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~i~0,QUANTIFIED] [2021-10-21 19:42:02,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,903 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~a~0.base,QUANTIFIED] [2021-10-21 19:42:02,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] [2021-10-21 19:42:02,904 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_37,QUANTIFIED] Derived loop invariant: (((((((1 <= i && N <= 1) || ((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 2 == unknown-#memory_int-unknown[a][a]) && unknown-#memory_int-unknown[b][b] == 1) && i == 0) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && (\exists ULTIMATE.start_main_~i~0 : int :: 2 <= ULTIMATE.start_main_~i~0 && unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a] == unknown-#memory_int-unknown[a][ULTIMATE.start_main_~i~0 * 8 + a + -8] + 20))) || ((2 <= i && i <= 2) && N <= 2)) || (((unknown-#memory_int-unknown[b][b] == 1 && i == 0) && N <= 1) && b == 0)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 2 <= i) && 0 <= cond) && unknown-#memory_int-unknown[b][b] == 1) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[a][a]) && a == 0) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((2 == unknown-#memory_int-unknown[a][a] && unknown-#memory_int-unknown[b][b] == 1) && i == 0) && a == 0) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2)) || (((((((((\exists ULTIMATE.start_main_~a~0.base : int, v_ULTIMATE.start_main_~i~0_37 : int, ULTIMATE.start_main_~i~0 : int :: (((((unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] && 2 <= v_ULTIMATE.start_main_~i~0_37) && 2 <= ULTIMATE.start_main_~i~0) && unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b + -8] + unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][ULTIMATE.start_main_~i~0 * 8 + -8] == unknown-#memory_int-unknown[b][ULTIMATE.start_main_~i~0 * 8 + b]) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][0] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8] == unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][v_ULTIMATE.start_main_~i~0_37 * 8 + -8] + 20) && unknown-#memory_int-unknown[ULTIMATE.start_main_~a~0.base][8] == 22) && 0 <= cond) && unknown-#memory_int-unknown[b][b] == 1) && unknown-#memory_int-unknown[b][i * 8 + b + -8] + unknown-#memory_int-unknown[a][i * 8 + a + -8] == unknown-#memory_int-unknown[b][i * 8 + b]) && (\exists v_ULTIMATE.start_main_~i~0_37 : int :: 2 <= v_ULTIMATE.start_main_~i~0_37 && unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8] == 20 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_37 * 8 + -8])) && a == 0) && i == 1) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0)) || (((((((((2 == unknown-#memory_int-unknown[a][a] && 1 <= cond) && 1 <= i) && unknown-#memory_int-unknown[b][b] == 1) && a == 0) && i <= 2) && N <= 2) && 20 + unknown-#memory_int-unknown[a][a] == unknown-#memory_int-unknown[a][a + 8]) && b == 0) && unknown-#memory_int-unknown[b][b + 8] == unknown-#memory_int-unknown[b][b] + 2) RESULT: Ultimate proved your program to be correct! [2021-10-21 19:42:02,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe5e16e7-c24f-4f2c-98a5-395b75740299/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...