./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/pcomp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/pcomp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1472da9c0a8f011e4f758f37d66a1227b497d4a96142a431b3f2f304a275b1b7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:48:41,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:48:41,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:48:41,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:48:41,246 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:48:41,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:48:41,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:48:41,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:48:41,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:48:41,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:48:41,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:48:41,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:48:41,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:48:41,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:48:41,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:48:41,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:48:41,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:48:41,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:48:41,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:48:41,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:48:41,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:48:41,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:48:41,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:48:41,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:48:41,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:48:41,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:48:41,287 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:48:41,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:48:41,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:48:41,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:48:41,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:48:41,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:48:41,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:48:41,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:48:41,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:48:41,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:48:41,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:48:41,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:48:41,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:48:41,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:48:41,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:48:41,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 01:48:41,332 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:48:41,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:48:41,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:48:41,334 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:48:41,334 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:48:41,334 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:48:41,335 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:48:41,335 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:48:41,335 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:48:41,336 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:48:41,336 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:48:41,336 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:48:41,337 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:48:41,337 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:48:41,337 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:48:41,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:48:41,339 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 01:48:41,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:48:41,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 01:48:41,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:48:41,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:48:41,340 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:48:41,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:48:41,341 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:48:41,341 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 01:48:41,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:48:41,342 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:48:41,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:48:41,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:48:41,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:48:41,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:48:41,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:48:41,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:48:41,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:48:41,345 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:48:41,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:48:41,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:48:41,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:48:41,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:48:41,346 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1472da9c0a8f011e4f758f37d66a1227b497d4a96142a431b3f2f304a275b1b7 [2021-11-07 01:48:41,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:48:41,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:48:41,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:48:41,665 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:48:41,666 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:48:41,667 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/array-fpi/pcomp.c [2021-11-07 01:48:41,771 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/data/60071a69b/8903dd47ae2d4a5885468f187d0289b9/FLAG18750d272 [2021-11-07 01:48:42,330 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:48:42,331 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/sv-benchmarks/c/array-fpi/pcomp.c [2021-11-07 01:48:42,340 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/data/60071a69b/8903dd47ae2d4a5885468f187d0289b9/FLAG18750d272 [2021-11-07 01:48:42,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/data/60071a69b/8903dd47ae2d4a5885468f187d0289b9 [2021-11-07 01:48:42,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:48:42,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:48:42,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:48:42,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:48:42,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:48:42,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:42,678 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e7db00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42, skipping insertion in model container [2021-11-07 01:48:42,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:42,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:48:42,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:48:42,893 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_cfe396d3-d61e-448c-a8a9-eef99c696c6d/sv-benchmarks/c/array-fpi/pcomp.c[588,601] [2021-11-07 01:48:42,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:48:42,930 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:48:42,942 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_cfe396d3-d61e-448c-a8a9-eef99c696c6d/sv-benchmarks/c/array-fpi/pcomp.c[588,601] [2021-11-07 01:48:42,955 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:48:42,970 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:48:42,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42 WrapperNode [2021-11-07 01:48:42,971 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:48:42,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:48:42,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:48:42,973 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:48:42,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,035 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:48:43,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:48:43,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:48:43,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:48:43,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,051 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,051 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:48:43,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:48:43,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:48:43,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:48:43,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (1/1) ... [2021-11-07 01:48:43,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:48:43,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:48:43,146 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:48:43,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:48:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 01:48:43,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:48:43,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 01:48:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:48:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:48:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:48:43,208 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 01:48:43,711 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:48:43,711 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-07 01:48:43,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:48:43 BoogieIcfgContainer [2021-11-07 01:48:43,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:48:43,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:48:43,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:48:43,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:48:43,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:48:42" (1/3) ... [2021-11-07 01:48:43,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca53fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:48:43, skipping insertion in model container [2021-11-07 01:48:43,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:48:42" (2/3) ... [2021-11-07 01:48:43,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca53fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:48:43, skipping insertion in model container [2021-11-07 01:48:43,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:48:43" (3/3) ... [2021-11-07 01:48:43,731 INFO L111 eAbstractionObserver]: Analyzing ICFG pcomp.c [2021-11-07 01:48:43,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:48:43,737 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 01:48:43,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:48:43,795 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 01:48:43,796 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 01:48:43,813 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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) [2021-11-07 01:48:43,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-07 01:48:43,819 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:48:43,820 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:48:43,820 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:48:43,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:48:43,827 INFO L85 PathProgramCache]: Analyzing trace with hash 697271499, now seen corresponding path program 1 times [2021-11-07 01:48:43,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:48:43,840 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202245110] [2021-11-07 01:48:43,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:43,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:48:43,985 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:48:43,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1439617645] [2021-11-07 01:48:43,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:43,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:48:43,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:48:43,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:48:44,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 01:48:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:48:44,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 01:48:44,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:48:44,343 INFO L354 Elim1Store]: treesize reduction 55, result has 40.9 percent of original size [2021-11-07 01:48:44,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 45 [2021-11-07 01:48:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:48:44,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:48:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:48:44,683 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:48:44,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202245110] [2021-11-07 01:48:44,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:48:44,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439617645] [2021-11-07 01:48:44,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439617645] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:48:44,686 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:48:44,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:48:44,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981402420] [2021-11-07 01:48:44,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:48:44,706 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:48:44,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:48:44,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:48:44,725 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.7) internal successors, (17), 11 states have internal predecessors, (17), 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 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:48:44,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:48:44,916 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2021-11-07 01:48:44,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:48:44,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-07 01:48:44,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:48:44,928 INFO L225 Difference]: With dead ends: 37 [2021-11-07 01:48:44,928 INFO L226 Difference]: Without dead ends: 22 [2021-11-07 01:48:44,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:48:44,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-07 01:48:44,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 15. [2021-11-07 01:48:44,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.5) internal successors, (21), 14 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) [2021-11-07 01:48:44,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 21 transitions. [2021-11-07 01:48:44,971 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 21 transitions. Word has length 8 [2021-11-07 01:48:44,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:48:44,972 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 21 transitions. [2021-11-07 01:48:44,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 6 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:48:44,973 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 21 transitions. [2021-11-07 01:48:44,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:48:44,974 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:48:44,974 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:48:45,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:48:45,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-07 01:48:45,191 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:48:45,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:48:45,191 INFO L85 PathProgramCache]: Analyzing trace with hash 131371694, now seen corresponding path program 1 times [2021-11-07 01:48:45,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:48:45,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931502467] [2021-11-07 01:48:45,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:45,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:48:45,242 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:48:45,243 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1896064906] [2021-11-07 01:48:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:45,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:48:45,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:48:45,245 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:48:45,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 01:48:45,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:48:45,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:48:45,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:48:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:48:45,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:48:45,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:48:45,446 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:48:45,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931502467] [2021-11-07 01:48:45,447 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:48:45,448 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896064906] [2021-11-07 01:48:45,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896064906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:48:45,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:48:45,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2021-11-07 01:48:45,454 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110202744] [2021-11-07 01:48:45,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:48:45,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:48:45,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:48:45,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:48:45,463 INFO L87 Difference]: Start difference. First operand 15 states and 21 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2021-11-07 01:48:45,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:48:45,607 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2021-11-07 01:48:45,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:48:45,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 01:48:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:48:45,609 INFO L225 Difference]: With dead ends: 36 [2021-11-07 01:48:45,609 INFO L226 Difference]: Without dead ends: 29 [2021-11-07 01:48:45,610 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:48:45,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-07 01:48:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 17. [2021-11-07 01:48:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 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) [2021-11-07 01:48:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2021-11-07 01:48:45,617 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 9 [2021-11-07 01:48:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:48:45,617 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2021-11-07 01:48:45,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2021-11-07 01:48:45,618 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-11-07 01:48:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 01:48:45,618 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:48:45,619 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:48:45,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:48:45,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:48:45,820 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:48:45,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:48:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash -197136011, now seen corresponding path program 1 times [2021-11-07 01:48:45,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:48:45,821 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477408976] [2021-11-07 01:48:45,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:45,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:48:45,889 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:48:45,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703753697] [2021-11-07 01:48:45,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:45,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:48:45,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:48:45,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:48:45,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 01:48:45,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:48:45,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-07 01:48:45,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:48:46,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:48:46,008 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:48:46,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:48:46,046 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:48:46,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477408976] [2021-11-07 01:48:46,047 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:48:46,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703753697] [2021-11-07 01:48:46,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703753697] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-07 01:48:46,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1501173531] [2021-11-07 01:48:46,073 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-07 01:48:46,073 INFO L166 IcfgInterpreter]: Building call graph [2021-11-07 01:48:46,079 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-07 01:48:46,086 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-07 01:48:46,086 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-07 01:48:46,124 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,127 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-11-07 01:48:46,130 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-11-07 01:48:46,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-11-07 01:48:46,160 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_20|], 21=[|v_#valid_21|]} [2021-11-07 01:48:46,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-11-07 01:48:46,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:48:46,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-11-07 01:48:46,181 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:46,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:46,234 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 30 [2021-11-07 01:48:46,256 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,259 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:48:46,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,260 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-11-07 01:48:46,261 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:46,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:46,277 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,282 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-11-07 01:48:46,283 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:48:46,283 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:124, output treesize:99 [2021-11-07 01:48:46,308 INFO L180 QuantifierPusher]: treesize reduction 6, result has 97.8 percent of original size [2021-11-07 01:48:46,319 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-11-07 01:48:46,322 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-11-07 01:48:46,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:48:46,343 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 276 [2021-11-07 01:48:46,374 INFO L446 ElimStorePlain]: Different costs {12=[|v_#length_21|], 45=[|v_#valid_22|]} [2021-11-07 01:48:46,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,497 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-07 01:48:46,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 18 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 46 [2021-11-07 01:48:46,504 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:48:46,510 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-11-07 01:48:46,513 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:46,531 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:46,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:46,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:46,538 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:46,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:46,599 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,717 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-11-07 01:48:46,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 60 treesize of output 69 [2021-11-07 01:48:46,721 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,731 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:48:46,737 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,738 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-11-07 01:48:46,738 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:46,739 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:46,761 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:46,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 14 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 44 [2021-11-07 01:48:46,787 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,790 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 01:48:46,791 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-11-07 01:48:46,792 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:46,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:46,828 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,840 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-11-07 01:48:46,841 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:48:46,842 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:518, output treesize:214 [2021-11-07 01:48:46,859 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,868 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,874 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,877 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,878 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 01:48:46,881 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,883 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:48:46,884 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-11-07 01:48:46,887 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,889 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,890 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-07 01:48:46,894 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,895 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,897 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,898 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,899 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:48:46,900 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,901 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,902 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-07 01:48:46,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-07 01:48:46,908 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,909 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,911 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-11-07 01:48:46,913 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-11-07 01:48:46,914 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:46,918 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,920 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-07 01:48:46,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 413 [2021-11-07 01:48:46,957 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:46,958 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:46,959 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,959 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:46,960 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:46,976 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:46,977 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,977 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:46,978 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:46,978 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:46,978 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:48:47,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,010 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:48:47,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 78 [2021-11-07 01:48:47,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:48:47,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,052 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:48:47,052 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,070 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:47,073 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,075 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:47,100 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 258 [2021-11-07 01:48:47,115 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,116 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 1 variables, input treesize:1081, output treesize:258 [2021-11-07 01:48:47,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:47,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:47,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:47,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,413 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,430 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,433 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,437 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,439 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,444 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,445 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-11-07 01:48:47,448 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,449 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:48:47,451 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-11-07 01:48:47,451 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,454 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,456 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 123 [2021-11-07 01:48:47,459 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,461 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,463 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,464 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,465 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-11-07 01:48:47,466 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,469 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,470 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-11-07 01:48:47,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-11-07 01:48:47,473 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,474 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,475 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 125 [2021-11-07 01:48:47,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 268 [2021-11-07 01:48:47,478 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,481 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 228 [2021-11-07 01:48:47,485 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,490 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,492 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,494 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,495 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,497 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-07 01:48:47,498 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,499 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,500 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-07 01:48:47,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-11-07 01:48:47,502 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,503 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,505 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-11-07 01:48:47,508 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,511 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,512 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,513 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 95 [2021-11-07 01:48:47,514 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 96 [2021-11-07 01:48:47,520 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-11-07 01:48:47,520 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,522 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,523 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-11-07 01:48:47,525 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 314 [2021-11-07 01:48:47,526 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,529 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,531 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 251 [2021-11-07 01:48:47,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 853 [2021-11-07 01:48:47,546 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:47,564 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,574 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 660 [2021-11-07 01:48:47,587 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 748 [2021-11-07 01:48:47,648 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:47,649 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,650 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,650 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,651 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,652 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,683 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:47,684 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,684 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,686 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2021-11-07 01:48:47,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,779 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-07 01:48:47,780 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,781 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 92 [2021-11-07 01:48:47,781 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,807 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:47,808 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,809 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,810 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,810 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,810 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,832 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:47,833 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,833 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,834 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,834 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:47,834 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,860 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:48:47,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:47,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 78 [2021-11-07 01:48:47,871 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:48:47,880 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:47,881 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-11-07 01:48:47,881 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:47,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:47,992 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,027 INFO L180 QuantifierPusher]: treesize reduction 145, result has 79.7 percent of original size [2021-11-07 01:48:48,038 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 571 [2021-11-07 01:48:48,040 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-11-07 01:48:48,040 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 1 variables, input treesize:2157, output treesize:571 [2021-11-07 01:48:48,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,158 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,200 INFO L180 QuantifierPusher]: treesize reduction 54, result has 81.5 percent of original size [2021-11-07 01:48:48,203 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:48,203 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,204 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:48:48,205 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:48,205 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,206 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-11-07 01:48:48,215 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:48,216 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-11-07 01:48:48,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-11-07 01:48:48,218 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-11-07 01:48:48,224 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 254 [2021-11-07 01:48:48,245 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:48,245 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:48,246 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:48,247 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:48,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,265 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,274 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:48,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,278 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:48,278 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:48,279 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:48,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,292 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:48,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 33 [2021-11-07 01:48:48,308 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,309 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:48:48,310 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,310 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-11-07 01:48:48,310 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:48,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,325 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,335 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-07 01:48:48,335 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,337 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:48,338 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,338 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-11-07 01:48:48,339 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-11-07 01:48:48,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 01:48:48,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,346 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,348 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-11-07 01:48:48,349 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-11-07 01:48:48,349 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:437, output treesize:103 [2021-11-07 01:48:48,359 INFO L180 QuantifierPusher]: treesize reduction 55, result has 53.0 percent of original size [2021-11-07 01:48:48,362 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 01:48:48,365 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-07 01:48:48,369 INFO L185 QuantifierPusher]: treesize reduction 4, result has 93.2 percent of original size 55 [2021-11-07 01:48:48,374 INFO L180 QuantifierPusher]: treesize reduction 5, result has 92.5 percent of original size [2021-11-07 01:48:48,376 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-11-07 01:48:48,384 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-07 01:48:49,143 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:48:49,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 01:48:49,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-07 01:48:49,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007999752] [2021-11-07 01:48:49,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-07 01:48:49,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:48:49,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-07 01:48:49,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-11-07 01:48:49,146 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2021-11-07 01:48:49,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:48:49,282 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-11-07 01:48:49,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 01:48:49,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 01:48:49,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:48:49,283 INFO L225 Difference]: With dead ends: 33 [2021-11-07 01:48:49,283 INFO L226 Difference]: Without dead ends: 27 [2021-11-07 01:48:49,284 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-11-07 01:48:49,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-07 01:48:49,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2021-11-07 01:48:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 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) [2021-11-07 01:48:49,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2021-11-07 01:48:49,289 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 9 [2021-11-07 01:48:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:48:49,289 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2021-11-07 01:48:49,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2021-11-07 01:48:49,290 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2021-11-07 01:48:49,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 01:48:49,290 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:48:49,291 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:48:49,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:48:49,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:48:49,491 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:48:49,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:48:49,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1958511373, now seen corresponding path program 1 times [2021-11-07 01:48:49,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:48:49,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036166547] [2021-11-07 01:48:49,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:49,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:48:49,553 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:48:49,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [658827997] [2021-11-07 01:48:49,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:49,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:48:49,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:48:49,560 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:48:49,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 01:48:49,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:48:49,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-07 01:48:49,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:48:49,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:48:49,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:48:49,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:48:49,802 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-07 01:48:49,802 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036166547] [2021-11-07 01:48:49,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-07 01:48:49,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658827997] [2021-11-07 01:48:49,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658827997] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:48:49,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:48:49,803 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2021-11-07 01:48:49,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972757685] [2021-11-07 01:48:49,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:48:49,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-07 01:48:49,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:48:49,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:48:49,805 INFO L87 Difference]: Start difference. First operand 17 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) [2021-11-07 01:48:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:48:49,913 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2021-11-07 01:48:49,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 01:48:49,914 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 11 [2021-11-07 01:48:49,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:48:49,915 INFO L225 Difference]: With dead ends: 29 [2021-11-07 01:48:49,915 INFO L226 Difference]: Without dead ends: 18 [2021-11-07 01:48:49,915 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:48:49,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-07 01:48:49,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2021-11-07 01:48:49,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 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) [2021-11-07 01:48:49,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-11-07 01:48:49,919 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 11 [2021-11-07 01:48:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:48:49,919 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-11-07 01:48:49,920 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) [2021-11-07 01:48:49,920 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-11-07 01:48:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 01:48:49,920 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:48:49,921 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:48:49,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:48:50,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-07 01:48:50,132 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 01:48:50,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:48:50,132 INFO L85 PathProgramCache]: Analyzing trace with hash 1012980313, now seen corresponding path program 1 times [2021-11-07 01:48:50,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 01:48:50,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869739108] [2021-11-07 01:48:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:50,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 01:48:50,163 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-07 01:48:50,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1749494771] [2021-11-07 01:48:50,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:48:50,164 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 01:48:50,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:48:50,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 01:48:50,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe396d3-d61e-448c-a8a9-eef99c696c6d/bin/utaipan-UUZaoUuFF8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 01:48:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:48:50,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-07 01:48:50,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:48:50,383 INFO L354 Elim1Store]: treesize reduction 55, result has 40.9 percent of original size [2021-11-07 01:48:50,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 59 treesize of output 45 [2021-11-07 01:48:50,416 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-07 01:48:50,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2021-11-07 01:48:50,477 INFO L354 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2021-11-07 01:48:50,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 42 [2021-11-07 01:48:51,563 INFO L354 Elim1Store]: treesize reduction 1911, result has 15.7 percent of original size [2021-11-07 01:48:51,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 53 case distinctions, treesize of input 270 treesize of output 528 [2021-11-07 01:48:51,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:51,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:51,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:51,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:51,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:51,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:51,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:51,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:51,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 12 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 248 treesize of output 156 [2021-11-07 01:48:52,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 159 [2021-11-07 01:48:52,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:52,381 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-07 01:48:52,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 255 treesize of output 159 [2021-11-07 01:48:56,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:56,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 321 treesize of output 194 [2021-11-07 01:48:57,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,079 INFO L354 Elim1Store]: treesize reduction 50, result has 2.0 percent of original size [2021-11-07 01:48:57,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 12 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 390 treesize of output 239 [2021-11-07 01:48:57,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:48:57,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 15 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 321 treesize of output 194 [2021-11-07 01:48:59,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-07 01:49:01,345 INFO L354 Elim1Store]: treesize reduction 450, result has 32.9 percent of original size [2021-11-07 01:49:01,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 4 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 35 case distinctions, treesize of input 706 treesize of output 720