./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw --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 c51b17720ce1dad8733576d816f307564aabdff8c7a86cf8d9848ed8571cafd2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:39:14,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:39:14,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:39:14,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:39:14,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:39:14,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:39:14,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:39:14,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:39:14,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:39:14,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:39:14,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:39:14,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:39:14,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:39:14,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:39:14,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:39:14,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:39:14,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:39:14,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:39:14,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:39:14,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:39:14,282 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:39:14,287 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:39:14,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:39:14,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:39:14,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:39:14,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:39:14,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:39:14,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:39:14,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:39:14,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:39:14,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:39:14,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:39:14,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:39:14,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:39:14,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:39:14,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:39:14,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:39:14,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:39:14,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:39:14,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:39:14,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:39:14,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:39:14,336 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:39:14,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:39:14,338 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:39:14,338 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:39:14,338 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:39:14,338 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:39:14,339 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:39:14,339 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:39:14,339 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:39:14,339 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:39:14,340 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:39:14,340 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:39:14,340 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:39:14,340 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:39:14,341 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:39:14,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:39:14,342 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:39:14,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:39:14,342 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:39:14,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:39:14,343 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:39:14,343 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:39:14,343 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:39:14,343 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:39:14,344 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:39:14,344 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:39:14,345 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:39:14,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:39:14,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:39:14,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:39:14,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:39:14,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:39:14,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:39:14,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:39:14,348 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:39:14,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:39:14,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:39:14,349 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:39:14,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:39:14,349 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_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c51b17720ce1dad8733576d816f307564aabdff8c7a86cf8d9848ed8571cafd2 [2021-10-20 05:39:14,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:39:14,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:39:14,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:39:14,636 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:39:14,637 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:39:14,638 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c [2021-10-20 05:39:14,694 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/data/5cda5f213/6f75efced9134b3b9bc7fa8dd076253f/FLAG0b1491bb3 [2021-10-20 05:39:15,174 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:39:15,177 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c [2021-10-20 05:39:15,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/data/5cda5f213/6f75efced9134b3b9bc7fa8dd076253f/FLAG0b1491bb3 [2021-10-20 05:39:15,531 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/data/5cda5f213/6f75efced9134b3b9bc7fa8dd076253f [2021-10-20 05:39:15,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:39:15,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:39:15,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:39:15,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:39:15,541 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:39:15,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f9a22f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15, skipping insertion in model container [2021-10-20 05:39:15,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:39:15,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:39:15,744 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_858896f5-95e6-4c87-aeec-717b1805f6a7/sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c[414,427] [2021-10-20 05:39:15,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:39:15,783 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:39:15,800 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_858896f5-95e6-4c87-aeec-717b1805f6a7/sv-benchmarks/c/array-cav19/array_init_var_plus_ind.c[414,427] [2021-10-20 05:39:15,812 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:39:15,829 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:39:15,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15 WrapperNode [2021-10-20 05:39:15,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:39:15,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:39:15,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:39:15,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:39:15,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:39:15,873 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:39:15,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:39:15,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:39:15,882 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:39:15,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:39:15,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:39:15,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:39:15,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (1/1) ... [2021-10-20 05:39:15,926 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:39:15,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:15,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:39:15,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:39:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 05:39:16,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:39:16,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-20 05:39:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:39:16,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:39:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-20 05:39:16,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-20 05:39:16,287 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:39:16,287 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-20 05:39:16,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:39:16 BoogieIcfgContainer [2021-10-20 05:39:16,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:39:16,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:39:16,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:39:16,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:39:16,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:39:15" (1/3) ... [2021-10-20 05:39:16,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfa69f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:39:16, skipping insertion in model container [2021-10-20 05:39:16,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:39:15" (2/3) ... [2021-10-20 05:39:16,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cfa69f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:39:16, skipping insertion in model container [2021-10-20 05:39:16,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:39:16" (3/3) ... [2021-10-20 05:39:16,298 INFO L111 eAbstractionObserver]: Analyzing ICFG array_init_var_plus_ind.c [2021-10-20 05:39:16,304 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:39:16,304 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:39:16,352 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:39:16,359 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 [2021-10-20 05:39:16,359 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 05:39:16,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:16,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-20 05:39:16,378 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:16,379 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-20 05:39:16,380 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:16,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:16,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1868223123, now seen corresponding path program 1 times [2021-10-20 05:39:16,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:16,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433579215] [2021-10-20 05:39:16,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:16,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:16,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:16,589 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:16,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433579215] [2021-10-20 05:39:16,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433579215] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:39:16,591 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:39:16,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-20 05:39:16,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327395459] [2021-10-20 05:39:16,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-20 05:39:16,601 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:16,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-20 05:39:16,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:39:16,625 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.625) internal successors, (13), 9 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:16,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:16,716 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2021-10-20 05:39:16,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-20 05:39:16,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-10-20 05:39:16,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:16,728 INFO L225 Difference]: With dead ends: 26 [2021-10-20 05:39:16,728 INFO L226 Difference]: Without dead ends: 17 [2021-10-20 05:39:16,730 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-20 05:39:16,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-20 05:39:16,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 10. [2021-10-20 05:39:16,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:16,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-10-20 05:39:16,758 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2021-10-20 05:39:16,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:16,758 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-10-20 05:39:16,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:16,759 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-10-20 05:39:16,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-20 05:39:16,760 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:16,760 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:16,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 05:39:16,761 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:16,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:16,762 INFO L82 PathProgramCache]: Analyzing trace with hash 947313280, now seen corresponding path program 1 times [2021-10-20 05:39:16,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:16,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924761917] [2021-10-20 05:39:16,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:16,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:16,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:16,840 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:16,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924761917] [2021-10-20 05:39:16,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924761917] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-20 05:39:16,841 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-20 05:39:16,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-20 05:39:16,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498702769] [2021-10-20 05:39:16,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-20 05:39:16,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:16,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-20 05:39:16,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:39:16,845 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:16,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:16,870 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2021-10-20 05:39:16,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-20 05:39:16,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-10-20 05:39:16,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:16,872 INFO L225 Difference]: With dead ends: 18 [2021-10-20 05:39:16,872 INFO L226 Difference]: Without dead ends: 11 [2021-10-20 05:39:16,873 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-20 05:39:16,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-20 05:39:16,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-20 05:39:16,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:16,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-20 05:39:16,876 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2021-10-20 05:39:16,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:16,877 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-20 05:39:16,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:16,877 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-20 05:39:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-20 05:39:16,878 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:16,878 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:16,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-20 05:39:16,879 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:16,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:16,880 INFO L82 PathProgramCache]: Analyzing trace with hash 362824998, now seen corresponding path program 1 times [2021-10-20 05:39:16,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:16,881 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553526742] [2021-10-20 05:39:16,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:16,881 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:16,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:16,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:16,957 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:16,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553526742] [2021-10-20 05:39:16,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553526742] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:16,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762318105] [2021-10-20 05:39:16,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:16,958 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:16,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:16,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:16,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-20 05:39:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:17,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-20 05:39:17,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:17,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:17,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:17,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762318105] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:17,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [886281202] [2021-10-20 05:39:17,231 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-20 05:39:17,231 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:17,245 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:17,250 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:17,250 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:17,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,305 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:17,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,308 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:17,313 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:17,314 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,315 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:17,319 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:17,344 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_13|], 36=[|v_#valid_28|]} [2021-10-20 05:39:17,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:17,395 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:17,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:17,400 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:17,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:17,473 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:17,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,542 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:17,544 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,546 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:17,547 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:17,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:17,575 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,593 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,596 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:17,597 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:17,598 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:17,606 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,619 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:17,633 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:17,639 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:17,639 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,640 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:17,647 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-10-20 05:39:17,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:17,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:17,679 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:17,685 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,685 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:17,687 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:17,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:17,705 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,709 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,714 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-10-20 05:39:17,717 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:17,718 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:158, output treesize:154 [2021-10-20 05:39:17,734 INFO L180 QuantifierPusher]: treesize reduction 11, result has 93.5 percent of original size [2021-10-20 05:39:17,745 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-10-20 05:39:17,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:17,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:17,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:17,952 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.9 percent of original size [2021-10-20 05:39:17,977 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:17,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,991 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:17,992 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,992 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:17,996 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:17,997 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:17,998 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 05:39:18,005 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-10-20 05:39:18,007 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:18,016 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,021 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-10-20 05:39:18,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-10-20 05:39:18,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:18,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:18,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:18,070 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,076 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:18,077 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:18,078 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:18,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:18,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:18,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:18,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 63 [2021-10-20 05:39:18,116 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,125 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-20 05:39:18,127 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,128 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-10-20 05:39:18,128 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:18,130 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,176 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,219 INFO L180 QuantifierPusher]: treesize reduction 120, result has 74.5 percent of original size [2021-10-20 05:39:18,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-10-20 05:39:18,232 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:18,233 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:479, output treesize:351 [2021-10-20 05:39:18,247 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,266 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-10-20 05:39:18,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,329 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,333 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,336 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,366 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,380 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:18,384 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:18,385 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,386 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:18,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:18,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:18,398 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,398 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:18,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,399 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:18,399 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:18,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,402 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:18,406 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:18,407 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:18,411 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,415 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:18,427 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:18,432 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:18,432 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:18,435 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:18,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:18,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,446 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:18,446 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,447 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:18,447 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:18,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:18,453 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:18,457 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:18,457 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:18,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,469 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:18,633 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:20,183 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:20,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:20,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 8 [2021-10-20 05:39:20,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177856438] [2021-10-20 05:39:20,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-20 05:39:20,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:20,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-20 05:39:20,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-10-20 05:39:20,186 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:20,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:20,244 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-10-20 05:39:20,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-20 05:39:20,245 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-20 05:39:20,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:20,246 INFO L225 Difference]: With dead ends: 36 [2021-10-20 05:39:20,246 INFO L226 Difference]: Without dead ends: 28 [2021-10-20 05:39:20,248 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1602.9ms TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2021-10-20 05:39:20,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-20 05:39:20,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2021-10-20 05:39:20,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:20,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-10-20 05:39:20,256 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 8 [2021-10-20 05:39:20,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:20,256 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-10-20 05:39:20,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:20,259 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-10-20 05:39:20,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-20 05:39:20,259 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:20,260 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:20,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:20,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:20,479 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:20,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1925995406, now seen corresponding path program 1 times [2021-10-20 05:39:20,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:20,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257067865] [2021-10-20 05:39:20,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:20,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:20,582 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:20,582 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:20,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257067865] [2021-10-20 05:39:20,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257067865] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:20,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833147659] [2021-10-20 05:39:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:20,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:20,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:20,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:20,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-20 05:39:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:20,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-20 05:39:20,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:20,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-10-20 05:39:20,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-10-20 05:39:20,864 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:20,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:20,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2021-10-20 05:39:20,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-10-20 05:39:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:20,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833147659] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:20,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1697629852] [2021-10-20 05:39:20,992 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-20 05:39:20,992 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:20,992 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:20,992 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:20,993 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:21,005 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,006 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:21,007 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,007 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:21,009 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:21,011 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:21,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:21,020 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_14|], 36=[|v_#valid_29|]} [2021-10-20 05:39:21,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:21,039 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:21,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,041 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:21,041 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,042 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,047 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:21,074 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,077 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:21,078 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,078 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:21,079 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,079 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,084 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,086 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,088 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:21,088 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,088 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:21,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:21,100 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:21,102 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:21,103 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,104 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-20 05:39:21,106 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-20 05:39:21,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-20 05:39:21,119 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,120 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:21,121 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,121 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:21,121 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,128 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,130 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-20 05:39:21,132 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-20 05:39:21,132 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,133 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-20 05:39:21,135 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-20 05:39:21,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,158 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,206 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-20 05:39:21,216 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:21,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,221 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:21,221 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:21,223 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:21,225 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-20 05:39:21,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-10-20 05:39:21,232 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:21,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,238 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-10-20 05:39:21,247 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-10-20 05:39:21,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-10-20 05:39:21,277 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,279 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 05:39:21,280 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,280 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 05:39:21,281 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:21,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:21,298 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,300 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:21,300 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,301 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:21,319 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,355 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,366 INFO L180 QuantifierPusher]: treesize reduction 128, result has 71.9 percent of original size [2021-10-20 05:39:21,370 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-10-20 05:39:21,371 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:21,372 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:328 [2021-10-20 05:39:21,376 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 334 [2021-10-20 05:39:21,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,449 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:21,456 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:21,457 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,457 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:21,458 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:21,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:21,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:21,467 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,467 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:21,467 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,471 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:21,473 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,473 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:21,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:21,490 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:21,497 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:21,500 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,501 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:21,502 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:21,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:21,508 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,509 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:21,509 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,511 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:21,511 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,515 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:21,516 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:21,516 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:21,516 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:21,518 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:21,563 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:22,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:22,675 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:22,675 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2021-10-20 05:39:22,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795828493] [2021-10-20 05:39:22,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 05:39:22,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:22,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 05:39:22,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2021-10-20 05:39:22,677 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:22,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:22,788 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-10-20 05:39:22,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-20 05:39:22,788 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-20 05:39:22,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:22,789 INFO L225 Difference]: With dead ends: 29 [2021-10-20 05:39:22,789 INFO L226 Difference]: Without dead ends: 27 [2021-10-20 05:39:22,790 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 1232.0ms TimeCoverageRelationStatistics Valid=62, Invalid=280, Unknown=0, NotChecked=0, Total=342 [2021-10-20 05:39:22,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-20 05:39:22,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2021-10-20 05:39:22,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:22,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2021-10-20 05:39:22,793 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 11 [2021-10-20 05:39:22,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:22,794 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2021-10-20 05:39:22,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:22,794 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2021-10-20 05:39:22,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-20 05:39:22,794 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:22,795 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:22,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:22,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-20 05:39:22,995 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:22,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:22,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1306013557, now seen corresponding path program 2 times [2021-10-20 05:39:22,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:22,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201052503] [2021-10-20 05:39:22,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:22,996 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:23,125 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:23,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:23,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201052503] [2021-10-20 05:39:23,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201052503] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:23,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256085674] [2021-10-20 05:39:23,126 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-20 05:39:23,126 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:23,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:23,127 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:23,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-20 05:39:23,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-20 05:39:23,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:39:23,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-20 05:39:23,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:23,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 26 [2021-10-20 05:39:23,361 INFO L354 Elim1Store]: treesize reduction 37, result has 22.9 percent of original size [2021-10-20 05:39:23,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 37 [2021-10-20 05:39:23,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-10-20 05:39:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:23,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:23,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-20 05:39:23,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 183 [2021-10-20 05:39:23,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:23,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256085674] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:23,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1633377947] [2021-10-20 05:39:23,658 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2021-10-20 05:39:23,658 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:23,658 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:23,659 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:23,659 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:23,666 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,667 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:23,667 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,668 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:23,668 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:23,668 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,669 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:23,670 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:23,673 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_15|], 36=[|v_#valid_30|]} [2021-10-20 05:39:23,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:23,695 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,696 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:23,696 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,697 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:23,697 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:23,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:23,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:23,731 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:23,734 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,734 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:23,734 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:23,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:23,739 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,741 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,742 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:23,743 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:23,743 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:23,749 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,751 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:23,755 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:23,758 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:23,759 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,759 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-20 05:39:23,762 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-20 05:39:23,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-20 05:39:23,774 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,776 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:23,776 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,777 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:23,777 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:23,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:23,782 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,785 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-20 05:39:23,787 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-20 05:39:23,787 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:23,787 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-20 05:39:23,795 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,798 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-20 05:39:23,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:23,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:23,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:23,866 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-20 05:39:23,876 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:23,880 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,881 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:23,882 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,882 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:23,885 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:23,886 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-20 05:39:23,891 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-10-20 05:39:23,893 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:23,896 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,909 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-20 05:39:23,914 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-10-20 05:39:23,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-20 05:39:23,942 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,943 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:23,944 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,946 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:23,946 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:23,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:23,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:23,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,962 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:23,963 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:23,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:23,964 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:23,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:23,996 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,010 INFO L180 QuantifierPusher]: treesize reduction 129, result has 72.0 percent of original size [2021-10-20 05:39:24,015 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-20 05:39:24,016 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:24,016 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:469, output treesize:332 [2021-10-20 05:39:24,022 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-20 05:39:24,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,089 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:24,091 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:24,092 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:24,094 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:24,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:24,101 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,102 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:24,102 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,103 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:24,103 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:24,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,106 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:24,109 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:24,109 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:24,111 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,113 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:24,125 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:24,127 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:24,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,129 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:24,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:24,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:24,136 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,136 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:24,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,137 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:24,137 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:24,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,140 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:24,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:24,142 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:24,142 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:24,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,149 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,156 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:24,180 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:25,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:25,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:25,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2021-10-20 05:39:25,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687865624] [2021-10-20 05:39:25,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-20 05:39:25,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:25,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-20 05:39:25,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2021-10-20 05:39:25,215 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:25,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:25,360 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-10-20 05:39:25,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-20 05:39:25,360 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-20 05:39:25,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:25,361 INFO L225 Difference]: With dead ends: 25 [2021-10-20 05:39:25,361 INFO L226 Difference]: Without dead ends: 23 [2021-10-20 05:39:25,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1229.5ms TimeCoverageRelationStatistics Valid=92, Invalid=414, Unknown=0, NotChecked=0, Total=506 [2021-10-20 05:39:25,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-20 05:39:25,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2021-10-20 05:39:25,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:25,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-10-20 05:39:25,365 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2021-10-20 05:39:25,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:25,365 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-10-20 05:39:25,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 12 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:25,366 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-20 05:39:25,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-20 05:39:25,366 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:25,366 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:25,404 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:25,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:25,579 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:25,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:25,579 INFO L82 PathProgramCache]: Analyzing trace with hash 866156038, now seen corresponding path program 1 times [2021-10-20 05:39:25,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:25,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808085375] [2021-10-20 05:39:25,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:25,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:25,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:25,644 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:25,644 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:25,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808085375] [2021-10-20 05:39:25,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808085375] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:25,645 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484238135] [2021-10-20 05:39:25,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:25,645 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:25,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:25,646 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:25,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-20 05:39:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:25,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-20 05:39:25,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:25,813 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:25,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:25,859 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:25,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484238135] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:25,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2144441699] [2021-10-20 05:39:25,863 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-20 05:39:25,864 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:25,864 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:25,864 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:25,864 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:25,872 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,875 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:25,875 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,876 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:25,876 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:25,877 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,877 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:25,879 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:25,884 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_16|], 36=[|v_#valid_31|]} [2021-10-20 05:39:25,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:25,903 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,903 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:25,904 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,904 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:25,904 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:25,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:25,909 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:25,935 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,938 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:25,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,939 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:25,940 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:25,941 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:25,945 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,947 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:25,950 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:25,950 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:25,955 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,964 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:25,968 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:25,970 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:25,971 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,971 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-20 05:39:25,974 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-20 05:39:25,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:25,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-20 05:39:25,987 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,988 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:25,989 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:25,990 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:25,990 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:25,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,008 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-20 05:39:26,010 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-20 05:39:26,010 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:26,011 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-20 05:39:26,014 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,017 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-20 05:39:26,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,080 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-20 05:39:26,090 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:26,094 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,095 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:26,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:26,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:26,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-10-20 05:39:26,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 322 [2021-10-20 05:39:26,106 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:26,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-10-20 05:39:26,119 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 373 [2021-10-20 05:39:26,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:26,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:26,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:26,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 50 [2021-10-20 05:39:26,149 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,158 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 05:39:26,159 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-10-20 05:39:26,160 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:26,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:26,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:26,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:26,176 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,177 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:26,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:26,178 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:26,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,213 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,228 INFO L180 QuantifierPusher]: treesize reduction 128, result has 71.9 percent of original size [2021-10-20 05:39:26,233 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 328 [2021-10-20 05:39:26,234 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:26,235 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:464, output treesize:328 [2021-10-20 05:39:26,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,250 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 334 [2021-10-20 05:39:26,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,299 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,309 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,317 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:26,319 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:26,320 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,320 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:26,321 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:26,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:26,328 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:26,329 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,329 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:26,329 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:26,330 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,332 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,333 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:26,334 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:26,335 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:26,336 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,339 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:26,348 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-20 05:39:26,351 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 93 [2021-10-20 05:39:26,355 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size [2021-10-20 05:39:26,360 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-10-20 05:39:26,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,382 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,404 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:26,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:26,409 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-20 05:39:26,423 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:26,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:26,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,443 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,468 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:26,470 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:26,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:26,472 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:26,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:26,478 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:26,479 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,480 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:26,480 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:26,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,483 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:26,484 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:26,484 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:26,485 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:26,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,491 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:26,520 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:27,751 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:27,751 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:27,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 9 [2021-10-20 05:39:27,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200054057] [2021-10-20 05:39:27,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-20 05:39:27,752 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:27,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-20 05:39:27,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-10-20 05:39:27,753 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:27,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:27,790 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-10-20 05:39:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-20 05:39:27,791 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-20 05:39:27,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:27,791 INFO L225 Difference]: With dead ends: 28 [2021-10-20 05:39:27,792 INFO L226 Difference]: Without dead ends: 18 [2021-10-20 05:39:27,792 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1264.8ms TimeCoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2021-10-20 05:39:27,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-20 05:39:27,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-20 05:39:27,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:27,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2021-10-20 05:39:27,796 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 14 [2021-10-20 05:39:27,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:27,797 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2021-10-20 05:39:27,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2021-10-20 05:39:27,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-20 05:39:27,798 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:27,798 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:27,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:28,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-10-20 05:39:28,015 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:28,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:28,015 INFO L82 PathProgramCache]: Analyzing trace with hash -653734721, now seen corresponding path program 2 times [2021-10-20 05:39:28,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:28,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920127963] [2021-10-20 05:39:28,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:28,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:28,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:28,184 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:28,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920127963] [2021-10-20 05:39:28,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920127963] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:28,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565605631] [2021-10-20 05:39:28,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-20 05:39:28,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:28,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:28,186 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:28,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-20 05:39:28,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-20 05:39:28,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:39:28,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-20 05:39:28,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:28,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 23 [2021-10-20 05:39:28,577 INFO L354 Elim1Store]: treesize reduction 13, result has 18.8 percent of original size [2021-10-20 05:39:28,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 52 treesize of output 39 [2021-10-20 05:39:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:28,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:28,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 25 [2021-10-20 05:39:28,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 40 [2021-10-20 05:39:28,971 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:28,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565605631] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:28,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [853096740] [2021-10-20 05:39:28,974 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-20 05:39:28,974 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:28,975 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:28,975 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:28,975 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:28,982 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:28,982 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:28,983 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:28,983 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:28,984 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:28,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:28,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:28,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:28,990 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_17|], 36=[|v_#valid_32|]} [2021-10-20 05:39:28,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:28,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:28,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:29,008 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,008 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:29,009 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,009 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:29,010 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,010 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,014 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:29,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,045 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:29,046 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,047 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:29,047 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,058 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:29,062 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,062 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:29,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,074 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:29,079 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:29,081 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:29,081 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,082 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-20 05:39:29,084 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-20 05:39:29,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-20 05:39:29,095 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,096 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:29,096 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,097 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:29,097 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,097 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,104 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-20 05:39:29,105 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-20 05:39:29,106 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,106 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-20 05:39:29,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-20 05:39:29,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,126 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,168 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-20 05:39:29,175 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:29,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,179 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:29,180 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-20 05:39:29,181 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:29,182 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,182 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:29,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-10-20 05:39:29,187 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:29,189 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-20 05:39:29,196 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-10-20 05:39:29,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-20 05:39:29,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,222 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:29,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:29,224 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:29,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:29,241 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,242 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:29,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,243 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:29,244 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,279 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,289 INFO L180 QuantifierPusher]: treesize reduction 129, result has 72.0 percent of original size [2021-10-20 05:39:29,293 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-20 05:39:29,294 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:29,294 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:469, output treesize:332 [2021-10-20 05:39:29,299 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,304 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-20 05:39:29,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,369 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,377 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:29,379 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:29,380 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:29,382 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:29,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:29,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:29,388 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:29,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,391 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,391 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,392 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:29,393 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,393 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:29,394 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,396 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:29,405 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-20 05:39:29,408 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 93 [2021-10-20 05:39:29,411 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size [2021-10-20 05:39:29,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-10-20 05:39:29,416 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,453 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,454 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,456 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,469 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:29,471 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:29,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,476 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-20 05:39:29,487 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:29,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:29,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,505 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,512 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,529 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:29,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:29,531 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:29,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:29,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:29,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:29,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:29,539 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,541 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,542 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:29,545 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:29,545 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:29,545 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:29,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,552 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,560 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:29,582 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:30,770 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:30,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:30,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 20 [2021-10-20 05:39:30,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008410882] [2021-10-20 05:39:30,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-20 05:39:30,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:30,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-20 05:39:30,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=643, Unknown=0, NotChecked=0, Total=756 [2021-10-20 05:39:30,773 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 21 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:31,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:31,026 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2021-10-20 05:39:31,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-20 05:39:31,027 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-10-20 05:39:31,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:31,027 INFO L225 Difference]: With dead ends: 29 [2021-10-20 05:39:31,027 INFO L226 Difference]: Without dead ends: 19 [2021-10-20 05:39:31,028 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1513.1ms TimeCoverageRelationStatistics Valid=155, Invalid=837, Unknown=0, NotChecked=0, Total=992 [2021-10-20 05:39:31,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-10-20 05:39:31,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-10-20 05:39:31,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-10-20 05:39:31,032 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16 [2021-10-20 05:39:31,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:31,032 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-10-20 05:39:31,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:31,032 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-10-20 05:39:31,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-20 05:39:31,033 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:31,033 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:31,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:31,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-10-20 05:39:31,243 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:31,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:31,244 INFO L82 PathProgramCache]: Analyzing trace with hash -802103325, now seen corresponding path program 1 times [2021-10-20 05:39:31,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:31,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358863892] [2021-10-20 05:39:31,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:31,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:31,294 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-20 05:39:31,294 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:31,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358863892] [2021-10-20 05:39:31,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358863892] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:31,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174183354] [2021-10-20 05:39:31,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:31,295 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:31,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:31,296 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:31,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-20 05:39:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:31,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-20 05:39:31,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:31,543 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-20 05:39:31,543 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:31,646 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-20 05:39:31,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174183354] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:31,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [625524467] [2021-10-20 05:39:31,648 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-20 05:39:31,649 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:31,649 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:31,649 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:31,649 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:31,654 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,655 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:31,656 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,656 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:31,657 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:31,657 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,658 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:31,659 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:31,661 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_18|], 36=[|v_#valid_33|]} [2021-10-20 05:39:31,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:31,681 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,682 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:31,682 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,683 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:31,683 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:31,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:31,687 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:31,713 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,715 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:31,716 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,717 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:31,717 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:31,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:31,721 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,724 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:31,725 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:31,725 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:31,729 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,732 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:31,735 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:31,737 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:31,738 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,739 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:31,741 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-10-20 05:39:31,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:31,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:31,755 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,755 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:31,755 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:31,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:31,760 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,762 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,764 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-10-20 05:39:31,764 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:31,765 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:158, output treesize:154 [2021-10-20 05:39:31,768 INFO L180 QuantifierPusher]: treesize reduction 11, result has 93.5 percent of original size [2021-10-20 05:39:31,772 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-10-20 05:39:31,775 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:31,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:31,797 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:31,825 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.9 percent of original size [2021-10-20 05:39:31,833 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:31,837 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,838 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:31,838 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,839 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-10-20 05:39:31,840 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:31,840 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,841 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:31,844 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-10-20 05:39:31,844 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:31,847 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,850 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-10-20 05:39:31,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 388 [2021-10-20 05:39:31,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:31,885 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,886 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:31,887 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,887 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:31,888 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:31,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:31,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 63 [2021-10-20 05:39:31,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,907 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-20 05:39:31,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-10-20 05:39:31,908 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:31,909 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:31,933 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,948 INFO L180 QuantifierPusher]: treesize reduction 117, result has 75.0 percent of original size [2021-10-20 05:39:31,953 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-10-20 05:39:31,954 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:31,955 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:479, output treesize:351 [2021-10-20 05:39:31,961 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:31,967 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 357 [2021-10-20 05:39:31,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,002 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,004 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,006 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,007 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,011 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,017 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:32,018 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:32,019 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,019 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:32,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:32,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:32,026 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,026 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:32,027 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,027 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:32,027 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:32,028 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,030 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,031 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:32,031 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:32,032 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:32,033 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,035 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:32,039 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:32,041 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:32,041 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,042 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:32,043 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:32,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:32,048 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,048 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:32,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,049 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:32,049 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:32,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,052 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,053 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:32,053 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:32,054 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:32,055 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,093 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,131 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,135 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 369 [2021-10-20 05:39:32,141 INFO L180 QuantifierPusher]: treesize reduction 8, result has 98.0 percent of original size [2021-10-20 05:39:32,146 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 365 [2021-10-20 05:39:32,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,175 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,180 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,184 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,185 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,208 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.8 percent of original size [2021-10-20 05:39:32,210 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-20 05:39:32,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:32,216 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 85 [2021-10-20 05:39:32,225 INFO L180 QuantifierPusher]: treesize reduction 42, result has 63.8 percent of original size [2021-10-20 05:39:32,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-10-20 05:39:32,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,244 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,246 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,251 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,260 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:32,285 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:33,494 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:33,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:33,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2021-10-20 05:39:33,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626347796] [2021-10-20 05:39:33,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-20 05:39:33,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:33,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-20 05:39:33,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2021-10-20 05:39:33,497 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:33,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:33,562 INFO L93 Difference]: Finished difference Result 86 states and 99 transitions. [2021-10-20 05:39:33,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-20 05:39:33,564 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 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 17 [2021-10-20 05:39:33,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:33,565 INFO L225 Difference]: With dead ends: 86 [2021-10-20 05:39:33,565 INFO L226 Difference]: Without dead ends: 78 [2021-10-20 05:39:33,566 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 1282.2ms TimeCoverageRelationStatistics Valid=151, Invalid=401, Unknown=0, NotChecked=0, Total=552 [2021-10-20 05:39:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-10-20 05:39:33,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 30. [2021-10-20 05:39:33,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:33,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-10-20 05:39:33,573 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 17 [2021-10-20 05:39:33,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:33,573 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-20 05:39:33,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.1176470588235294) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:33,573 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2021-10-20 05:39:33,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-20 05:39:33,574 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:33,574 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 2, 1, 1, 1, 1, 1, 1, 1] [2021-10-20 05:39:33,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:33,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:33,791 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:33,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:33,791 INFO L82 PathProgramCache]: Analyzing trace with hash -979873480, now seen corresponding path program 3 times [2021-10-20 05:39:33,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:33,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451044704] [2021-10-20 05:39:33,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:33,792 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:33,947 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:33,948 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:33,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451044704] [2021-10-20 05:39:33,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451044704] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:33,948 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979644365] [2021-10-20 05:39:33,948 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-20 05:39:33,948 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:33,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:33,951 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:33,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-20 05:39:34,101 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-20 05:39:34,102 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:39:34,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 27 conjunts are in the unsatisfiable core [2021-10-20 05:39:34,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:34,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2021-10-20 05:39:34,186 INFO L354 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2021-10-20 05:39:34,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2021-10-20 05:39:34,240 INFO L354 Elim1Store]: treesize reduction 72, result has 20.9 percent of original size [2021-10-20 05:39:34,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 43 [2021-10-20 05:39:34,452 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-20 05:39:34,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 54 treesize of output 30 [2021-10-20 05:39:34,476 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:34,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:35,584 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~j~0_65 Int) (v_ULTIMATE.start_main_~i~0_80 Int)) (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|) (+ |c_ULTIMATE.start_main_~#a~0.offset| (* c_ULTIMATE.start_main_~i~0 4)) c_ULTIMATE.start_main_~j~0) (+ |c_ULTIMATE.start_main_~#a~0.offset| (* v_ULTIMATE.start_main_~i~0_80 4)) v_ULTIMATE.start_main_~j~0_65))) (or (< v_ULTIMATE.start_main_~i~0_80 (+ c_ULTIMATE.start_main_~i~0 1)) (<= 0 (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0.offset| 8))) (< (select .cse0 (+ |c_ULTIMATE.start_main_~#a~0.offset| 4)) 0) (<= v_ULTIMATE.start_main_~i~0_80 1)))) is different from false [2021-10-20 05:39:35,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 72 [2021-10-20 05:39:35,678 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-20 05:39:35,679 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 590 treesize of output 578 [2021-10-20 05:39:36,028 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 8 not checked. [2021-10-20 05:39:36,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979644365] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:36,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2089981348] [2021-10-20 05:39:36,030 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-20 05:39:36,030 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:36,031 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:36,031 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:36,031 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:36,035 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,036 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:36,037 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,037 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:36,038 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:36,038 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,039 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:36,040 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:36,042 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_19|], 36=[|v_#valid_34|]} [2021-10-20 05:39:36,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,059 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:36,059 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,060 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:36,060 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,061 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:36,061 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,065 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:36,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,092 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:36,093 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,093 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:36,093 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,098 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:36,101 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,101 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:36,105 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,108 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:36,111 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:36,113 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:36,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,114 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-20 05:39:36,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-20 05:39:36,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-20 05:39:36,128 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,130 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 05:39:36,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,131 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 05:39:36,131 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,135 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-20 05:39:36,139 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,140 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:150, output treesize:146 [2021-10-20 05:39:36,143 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.7 percent of original size [2021-10-20 05:39:36,147 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-10-20 05:39:36,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,172 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,199 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-20 05:39:36,206 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:36,209 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,210 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:36,211 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,211 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:36,212 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:36,213 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,213 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-20 05:39:36,217 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-10-20 05:39:36,217 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:36,220 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,223 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-10-20 05:39:36,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-10-20 05:39:36,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-20 05:39:36,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:36,253 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:36,254 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:36,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:36,270 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,271 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:36,271 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,272 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:36,272 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,297 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,312 INFO L180 QuantifierPusher]: treesize reduction 118, result has 74.5 percent of original size [2021-10-20 05:39:36,317 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-10-20 05:39:36,318 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:36,318 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:471, output treesize:345 [2021-10-20 05:39:36,324 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,330 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-10-20 05:39:36,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,375 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,385 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:36,386 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:36,387 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,387 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:36,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:36,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:36,399 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,400 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:36,400 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,401 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:36,401 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,403 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,404 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:36,405 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,405 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:36,407 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,409 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:36,418 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-20 05:39:36,420 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-10-20 05:39:36,423 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size [2021-10-20 05:39:36,433 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-10-20 05:39:36,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,445 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,452 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,459 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:36,460 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:36,462 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-20 05:39:36,477 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:36,479 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:36,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,530 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:36,531 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:36,532 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,532 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:36,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:36,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:36,538 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,539 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:36,539 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,540 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:36,540 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,540 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,543 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:36,543 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:36,544 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:36,544 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:36,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:36,577 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:38,001 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:38,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:38,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 26 [2021-10-20 05:39:38,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497579318] [2021-10-20 05:39:38,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-10-20 05:39:38,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:38,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-10-20 05:39:38,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=933, Unknown=1, NotChecked=62, Total=1122 [2021-10-20 05:39:38,004 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 26 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:38,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:38,493 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2021-10-20 05:39:38,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-20 05:39:38,493 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 26 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-20 05:39:38,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:38,495 INFO L225 Difference]: With dead ends: 37 [2021-10-20 05:39:38,495 INFO L226 Difference]: Without dead ends: 35 [2021-10-20 05:39:38,496 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 373 ImplicationChecksByTransitivity, 2916.0ms TimeCoverageRelationStatistics Valid=244, Invalid=1481, Unknown=1, NotChecked=80, Total=1806 [2021-10-20 05:39:38,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-10-20 05:39:38,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-10-20 05:39:38,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.25) internal successors, (40), 32 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 40 transitions. [2021-10-20 05:39:38,503 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 40 transitions. Word has length 18 [2021-10-20 05:39:38,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:38,504 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 40 transitions. [2021-10-20 05:39:38,504 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.7407407407407407) internal successors, (47), 26 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:38,504 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2021-10-20 05:39:38,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-20 05:39:38,505 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:38,505 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 1, 1, 1, 1, 1] [2021-10-20 05:39:38,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:38,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:38,724 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:38,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:38,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1486991388, now seen corresponding path program 4 times [2021-10-20 05:39:38,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:38,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105808342] [2021-10-20 05:39:38,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:38,725 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:38,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:38,968 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:38,969 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:38,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105808342] [2021-10-20 05:39:38,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105808342] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:38,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526355307] [2021-10-20 05:39:38,969 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-20 05:39:38,970 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:38,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:38,975 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:38,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-20 05:39:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:39,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-20 05:39:39,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:39,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-10-20 05:39:39,579 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-10-20 05:39:39,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 41 treesize of output 34 [2021-10-20 05:39:39,606 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:39,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:39,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2021-10-20 05:39:39,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2021-10-20 05:39:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:39,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526355307] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:39,889 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [766378817] [2021-10-20 05:39:39,891 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-20 05:39:39,891 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:39,891 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:39,892 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:39,892 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:39,905 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:39,905 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:39,906 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:39,906 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:39,907 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:39,907 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:39,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:39,908 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:39,911 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_20|], 36=[|v_#valid_35|]} [2021-10-20 05:39:39,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:39,927 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:39,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:39,928 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:39,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:39,928 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:39,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:39,943 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:39,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:39,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:39,991 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:39,994 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:39,994 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:39,995 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:39,995 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:39,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,000 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,001 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,002 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:40,003 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:40,003 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:40,018 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,020 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:40,023 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:40,025 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:40,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,029 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-20 05:39:40,038 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-20 05:39:40,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:40,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:40,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-20 05:39:40,049 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,050 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:40,051 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,051 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:40,052 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:40,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,057 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,059 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-20 05:39:40,068 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-20 05:39:40,068 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:40,069 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-20 05:39:40,071 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,075 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-20 05:39:40,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,126 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-20 05:39:40,134 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:40,137 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,138 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:40,139 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,139 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-20 05:39:40,140 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:40,140 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,141 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:40,144 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-10-20 05:39:40,144 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:40,147 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,150 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-20 05:39:40,154 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-10-20 05:39:40,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:40,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:40,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:40,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-20 05:39:40,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:40,181 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,181 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:40,182 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:40,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:40,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:40,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:40,199 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,200 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:40,201 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,201 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:40,202 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:40,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,235 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,250 INFO L180 QuantifierPusher]: treesize reduction 129, result has 72.0 percent of original size [2021-10-20 05:39:40,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-20 05:39:40,255 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:40,256 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:469, output treesize:332 [2021-10-20 05:39:40,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-20 05:39:40,272 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,329 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:40,330 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:40,331 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:40,332 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:40,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:40,341 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,341 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:40,342 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,342 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:40,342 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:40,343 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,344 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,345 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,346 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:40,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:40,346 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:40,348 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,350 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:40,361 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-20 05:39:40,367 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-10-20 05:39:40,372 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size [2021-10-20 05:39:40,375 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-10-20 05:39:40,379 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,405 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:40,407 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:40,410 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,413 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-20 05:39:40,421 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:40,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:40,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,447 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,464 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:40,465 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:40,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:40,466 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:40,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:40,472 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:40,473 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:40,474 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:40,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,476 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,477 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:40,477 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:40,478 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:40,478 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:40,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:40,515 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:41,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:41,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:41,950 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2021-10-20 05:39:41,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842689282] [2021-10-20 05:39:41,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-20 05:39:41,951 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:41,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-20 05:39:41,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2021-10-20 05:39:41,952 INFO L87 Difference]: Start difference. First operand 33 states and 40 transitions. Second operand has 25 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:42,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:42,341 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2021-10-20 05:39:42,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-20 05:39:42,342 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 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 21 [2021-10-20 05:39:42,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:42,343 INFO L225 Difference]: With dead ends: 46 [2021-10-20 05:39:42,343 INFO L226 Difference]: Without dead ends: 33 [2021-10-20 05:39:42,344 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1942.0ms TimeCoverageRelationStatistics Valid=157, Invalid=1249, Unknown=0, NotChecked=0, Total=1406 [2021-10-20 05:39:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-10-20 05:39:42,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-10-20 05:39:42,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:42,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2021-10-20 05:39:42,350 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 21 [2021-10-20 05:39:42,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:42,350 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2021-10-20 05:39:42,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.2) internal successors, (55), 24 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:42,351 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-10-20 05:39:42,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-20 05:39:42,351 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:42,352 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 3, 2, 2, 1, 1, 1, 1, 1] [2021-10-20 05:39:42,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:42,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable211 [2021-10-20 05:39:42,568 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:42,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:42,569 INFO L82 PathProgramCache]: Analyzing trace with hash -73461949, now seen corresponding path program 5 times [2021-10-20 05:39:42,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:42,569 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535100965] [2021-10-20 05:39:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:42,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:42,794 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:42,794 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:42,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535100965] [2021-10-20 05:39:42,794 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535100965] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:42,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815757622] [2021-10-20 05:39:42,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-20 05:39:42,794 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:42,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:42,795 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:42,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-20 05:39:42,990 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-20 05:39:42,990 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:39:42,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-20 05:39:42,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:43,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-10-20 05:39:43,139 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-20 05:39:43,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-20 05:39:43,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-10-20 05:39:43,310 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:43,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:43,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 27 [2021-10-20 05:39:43,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 191 treesize of output 183 [2021-10-20 05:39:43,714 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:43,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815757622] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:43,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1034333711] [2021-10-20 05:39:43,716 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-20 05:39:43,717 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:43,717 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:43,717 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:43,717 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:43,723 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,724 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:43,724 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,725 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:43,725 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:43,726 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,726 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:43,727 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:43,731 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_21|], 36=[|v_#valid_36|]} [2021-10-20 05:39:43,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:43,753 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,753 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:43,754 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,754 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:43,754 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:43,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:43,764 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:43,782 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:43,785 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,785 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:43,786 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:43,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:43,789 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,790 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,791 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:43,791 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:43,792 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:43,803 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,805 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:43,810 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:43,812 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:43,813 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,813 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-10-20 05:39:43,815 INFO L185 QuantifierPusher]: treesize reduction 3, result has 97.9 percent of original size 138 [2021-10-20 05:39:43,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-10-20 05:39:43,826 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,827 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:43,827 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,828 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-10-20 05:39:43,828 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:43,834 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:43,842 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,844 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.8 percent of original size [2021-10-20 05:39:43,845 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-10-20 05:39:43,848 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:43,849 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:139, output treesize:132 [2021-10-20 05:39:43,851 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,854 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-10-20 05:39:43,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:43,869 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:43,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:43,913 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-20 05:39:43,920 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:43,923 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,924 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:43,924 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,925 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:43,926 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:43,926 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,927 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-20 05:39:43,930 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 327 [2021-10-20 05:39:43,930 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:43,933 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-10-20 05:39:43,940 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-10-20 05:39:43,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:43,964 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,965 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:43,966 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,966 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:43,966 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:43,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:43,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-20 05:39:43,984 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,985 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:43,986 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:43,987 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:43,987 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:43,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,010 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,019 INFO L180 QuantifierPusher]: treesize reduction 129, result has 72.0 percent of original size [2021-10-20 05:39:44,023 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 332 [2021-10-20 05:39:44,024 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:44,024 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:469, output treesize:332 [2021-10-20 05:39:44,028 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,033 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 338 [2021-10-20 05:39:44,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,072 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,097 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:44,098 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:44,099 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,099 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:44,100 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:44,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:44,106 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,106 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:44,107 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,107 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:44,107 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:44,108 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,109 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,110 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,111 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:44,112 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:44,113 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:44,114 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,116 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:44,126 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-20 05:39:44,128 INFO L185 QuantifierPusher]: treesize reduction 3, result has 96.9 percent of original size 93 [2021-10-20 05:39:44,131 INFO L180 QuantifierPusher]: treesize reduction 3, result has 97.7 percent of original size [2021-10-20 05:39:44,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 100 [2021-10-20 05:39:44,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,158 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:44,159 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:44,161 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-20 05:39:44,174 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:44,176 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:44,177 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,201 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,217 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:44,218 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:44,219 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,219 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:44,220 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:44,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:44,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:44,226 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,227 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:44,227 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:44,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,229 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,230 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:44,231 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:44,231 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:44,231 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:44,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:44,261 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:45,484 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:45,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:45,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2021-10-20 05:39:45,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867153567] [2021-10-20 05:39:45,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-20 05:39:45,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:45,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-20 05:39:45,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2021-10-20 05:39:45,487 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 30 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:45,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:39:45,958 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2021-10-20 05:39:45,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-20 05:39:45,959 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 30 states have internal predecessors, (66), 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 23 [2021-10-20 05:39:45,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:39:45,959 INFO L225 Difference]: With dead ends: 40 [2021-10-20 05:39:45,960 INFO L226 Difference]: Without dead ends: 38 [2021-10-20 05:39:45,961 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 1934.3ms TimeCoverageRelationStatistics Valid=238, Invalid=1924, Unknown=0, NotChecked=0, Total=2162 [2021-10-20 05:39:45,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-20 05:39:45,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2021-10-20 05:39:45,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.2) internal successors, (42), 35 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:45,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2021-10-20 05:39:45,967 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 23 [2021-10-20 05:39:45,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:39:45,967 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2021-10-20 05:39:45,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.129032258064516) internal successors, (66), 30 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:39:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2021-10-20 05:39:45,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-20 05:39:45,968 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:39:45,969 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 4, 3, 3, 1, 1, 1, 1, 1] [2021-10-20 05:39:45,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-20 05:39:46,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:46,175 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:39:46,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:39:46,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1933521457, now seen corresponding path program 6 times [2021-10-20 05:39:46,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:39:46,175 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315395244] [2021-10-20 05:39:46,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:39:46,176 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:39:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-20 05:39:46,420 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:46,420 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-20 05:39:46,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315395244] [2021-10-20 05:39:46,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315395244] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-20 05:39:46,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1570354699] [2021-10-20 05:39:46,420 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-20 05:39:46,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:39:46,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:39:46,435 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-20 05:39:46,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-20 05:39:46,696 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-20 05:39:46,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-20 05:39:46,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 30 conjunts are in the unsatisfiable core [2021-10-20 05:39:46,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-20 05:39:46,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 20 [2021-10-20 05:39:46,810 INFO L354 Elim1Store]: treesize reduction 42, result has 22.2 percent of original size [2021-10-20 05:39:46,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 39 [2021-10-20 05:39:46,880 INFO L354 Elim1Store]: treesize reduction 96, result has 20.7 percent of original size [2021-10-20 05:39:46,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 58 [2021-10-20 05:39:47,570 INFO L354 Elim1Store]: treesize reduction 166, result has 4.0 percent of original size [2021-10-20 05:39:47,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 56 [2021-10-20 05:39:47,611 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 9 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:47,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-20 05:39:54,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 85 [2021-10-20 05:39:54,601 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-10-20 05:39:54,601 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 2012 treesize of output 1960 [2021-10-20 05:39:55,073 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 43 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-20 05:39:55,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1570354699] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-20 05:39:55,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2092765007] [2021-10-20 05:39:55,081 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-10-20 05:39:55,081 INFO L166 IcfgInterpreter]: Building call graph [2021-10-20 05:39:55,081 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-20 05:39:55,081 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-20 05:39:55,082 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-20 05:39:55,087 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,088 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:55,088 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,089 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 69 [2021-10-20 05:39:55,089 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:55,089 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,090 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:55,091 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-10-20 05:39:55,094 INFO L446 ElimStorePlain]: Different costs {0=[|v_#length_22|], 36=[|v_#valid_37|]} [2021-10-20 05:39:55,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 16 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 23 [2021-10-20 05:39:55,108 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:55,109 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,109 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-10-20 05:39:55,109 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,112 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 11 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 38 [2021-10-20 05:39:55,130 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,133 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:55,133 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,134 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-10-20 05:39:55,134 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,137 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,138 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,138 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-10-20 05:39:55,139 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,139 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:160, output treesize:122 [2021-10-20 05:39:55,141 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,143 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 133 [2021-10-20 05:39:55,161 INFO L180 QuantifierPusher]: treesize reduction 8, result has 95.1 percent of original size [2021-10-20 05:39:55,163 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:55,163 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,164 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-20 05:39:55,165 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-20 05:39:55,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 35 [2021-10-20 05:39:55,177 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,178 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 05:39:55,178 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,179 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-10-20 05:39:55,179 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,183 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,185 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,186 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-20 05:39:55,187 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,187 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:150, output treesize:146 [2021-10-20 05:39:55,190 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.7 percent of original size [2021-10-20 05:39:55,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-10-20 05:39:55,195 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,239 INFO L180 QuantifierPusher]: treesize reduction 8, result has 97.8 percent of original size [2021-10-20 05:39:55,246 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:55,249 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,250 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:55,251 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,251 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-10-20 05:39:55,252 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:55,252 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,253 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-10-20 05:39:55,256 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 329 [2021-10-20 05:39:55,256 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:55,259 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,262 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 305 [2021-10-20 05:39:55,265 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-10-20 05:39:55,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2021-10-20 05:39:55,286 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,287 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:55,287 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,288 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-10-20 05:39:55,288 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-20 05:39:55,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 55 [2021-10-20 05:39:55,305 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,306 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:55,307 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,307 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-10-20 05:39:55,308 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,308 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,330 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,341 INFO L180 QuantifierPusher]: treesize reduction 118, result has 74.5 percent of original size [2021-10-20 05:39:55,345 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 345 [2021-10-20 05:39:55,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 2 xjuncts. [2021-10-20 05:39:55,346 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:471, output treesize:345 [2021-10-20 05:39:55,351 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,356 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 351 [2021-10-20 05:39:55,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,392 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,393 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,403 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:55,404 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:55,405 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,405 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:55,406 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:55,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:55,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,422 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:55,423 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,423 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:55,423 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,425 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,426 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,427 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:55,427 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,427 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:55,429 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,431 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-10-20 05:39:55,440 INFO L180 QuantifierPusher]: treesize reduction 42, result has 70.6 percent of original size [2021-10-20 05:39:55,442 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-10-20 05:39:55,445 INFO L180 QuantifierPusher]: treesize reduction 7, result has 95.0 percent of original size [2021-10-20 05:39:55,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-10-20 05:39:55,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,459 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,460 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,464 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,472 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:55,473 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:55,475 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,478 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 87 [2021-10-20 05:39:55,487 INFO L180 QuantifierPusher]: treesize reduction 42, result has 64.4 percent of original size [2021-10-20 05:39:55,488 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:55,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,495 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,524 INFO L180 QuantifierPusher]: treesize reduction 50, result has 59.0 percent of original size [2021-10-20 05:39:55,526 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-20 05:39:55,526 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,526 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-10-20 05:39:55,527 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-10-20 05:39:55,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-10-20 05:39:55,533 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,533 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:55,534 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,534 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-10-20 05:39:55,534 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,537 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-20 05:39:55,538 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 65 [2021-10-20 05:39:55,538 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-20 05:39:55,538 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:69, output treesize:65 [2021-10-20 05:39:55,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:39:55,568 INFO L180 IcfgInterpreter]: Interpretation finished [2021-10-20 05:39:56,889 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-20 05:39:56,889 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-10-20 05:39:56,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 14] total 34 [2021-10-20 05:39:56,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199744842] [2021-10-20 05:39:56,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-10-20 05:39:56,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-20 05:39:56,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-10-20 05:39:56,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1507, Unknown=6, NotChecked=0, Total=1722 [2021-10-20 05:39:56,891 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 35 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:40:07,420 WARN L207 SmtUtils]: Spent 10.11 s on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2021-10-20 05:40:19,624 WARN L207 SmtUtils]: Spent 8.61 s on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2021-10-20 05:40:40,339 WARN L207 SmtUtils]: Spent 9.98 s on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-10-20 05:40:51,630 WARN L207 SmtUtils]: Spent 8.75 s on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-10-20 05:41:10,174 WARN L207 SmtUtils]: Spent 9.27 s on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2021-10-20 05:41:31,095 WARN L207 SmtUtils]: Spent 8.95 s on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2021-10-20 05:41:50,882 WARN L207 SmtUtils]: Spent 10.70 s on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2021-10-20 05:42:12,641 WARN L207 SmtUtils]: Spent 10.66 s on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-10-20 05:42:22,866 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|)) (.cse8 (* c_ULTIMATE.start_main_~k~0 4))) (let ((.cse3 (<= 0 (select .cse7 (+ |c_ULTIMATE.start_main_~#a~0.offset| 8 .cse8)))) (.cse4 (<= c_ULTIMATE.start_main_~i~0 (+ c_ULTIMATE.start_main_~k~0 2)))) (and (forall ((v_ULTIMATE.start_main_~j~0_103 Int) (v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse0 (let ((.cse2 (* c_ULTIMATE.start_main_~i~0 4))) (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|) (+ |c_ULTIMATE.start_main_~#a~0.offset| .cse2) c_ULTIMATE.start_main_~j~0) (+ |c_ULTIMATE.start_main_~#a~0.offset| 4 .cse2) v_ULTIMATE.start_main_~j~0_103))) (.cse1 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~#a~0.offset|)) 0) (<= 0 (select .cse0 (+ .cse1 |c_ULTIMATE.start_main_~#a~0.offset| 8))) (< v_ULTIMATE.start_main_~k~0_62 2) (< v_ULTIMATE.start_main_~j~0_103 (+ c_ULTIMATE.start_main_~j~0 c_ULTIMATE.start_main_~i~0)) (<= c_ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~k~0_62)))) (or .cse3 (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond) .cse4) (forall ((v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~#a~0.base|)) (.cse6 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< v_ULTIMATE.start_main_~k~0_62 (+ c_ULTIMATE.start_main_~k~0 1)) (<= 0 (select .cse5 (+ .cse6 |c_ULTIMATE.start_main_~#a~0.offset| 8))) (< (select .cse5 (+ .cse6 |c_ULTIMATE.start_main_~#a~0.offset|)) 0) (<= c_ULTIMATE.start_main_~i~0 (+ 2 v_ULTIMATE.start_main_~k~0_62))))) (or .cse3 (< (select .cse7 (+ |c_ULTIMATE.start_main_~#a~0.offset| .cse8)) 0) .cse4) (or (<= 0 (select .cse7 (+ |c_ULTIMATE.start_main_~#a~0.offset| .cse8 4))) (<= c_ULTIMATE.start_main_~i~0 (+ c_ULTIMATE.start_main_~k~0 1)))))) is different from false [2021-10-20 05:42:32,831 WARN L207 SmtUtils]: Spent 9.90 s on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-10-20 05:42:34,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-20 05:42:34,024 INFO L93 Difference]: Finished difference Result 50 states and 57 transitions. [2021-10-20 05:42:34,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-20 05:42:34,025 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 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 26 [2021-10-20 05:42:34,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-20 05:42:34,025 INFO L225 Difference]: With dead ends: 50 [2021-10-20 05:42:34,025 INFO L226 Difference]: Without dead ends: 0 [2021-10-20 05:42:34,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 984 ImplicationChecksByTransitivity, 136980.3ms TimeCoverageRelationStatistics Valid=552, Invalid=3461, Unknown=23, NotChecked=124, Total=4160 [2021-10-20 05:42:34,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-20 05:42:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-20 05:42:34,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:42:34,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-20 05:42:34,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2021-10-20 05:42:34,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-20 05:42:34,028 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-20 05:42:34,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.9714285714285715) internal successors, (69), 34 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:42:34,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-20 05:42:34,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-20 05:42:34,031 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:42:34,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-20 05:42:34,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable273,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-20 05:42:34,234 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-20 05:42:34,236 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:42:34,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-20 05:43:25,358 WARN L207 SmtUtils]: Spent 51.07 s on a formula simplification. DAG size of input: 190 DAG size of output: 117 [2021-10-20 05:43:32,546 WARN L207 SmtUtils]: Spent 7.19 s on a formula simplification. DAG size of input: 144 DAG size of output: 103 [2021-10-20 05:43:32,548 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-20 05:43:32,549 INFO L857 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2021-10-20 05:43:32,549 INFO L853 garLoopResultBuilder]: At program point L17-3(lines 17 22) the Hoare annotation is: (let ((.cse3 (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|)) (.cse5 (* ULTIMATE.start_main_~i~0 4))) (let ((.cse13 (select .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| (- 4) .cse5)))) (let ((.cse7 (<= (+ (select .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| (- 8) .cse5)) ULTIMATE.start_main_~i~0) (+ 2 .cse13))) (.cse6 (exists ((v_ULTIMATE.start_main_~i~0_36 Int)) (and (<= 1 v_ULTIMATE.start_main_~i~0_36) (<= v_ULTIMATE.start_main_~i~0_36 1) (<= (+ v_ULTIMATE.start_main_~i~0_36 1) ULTIMATE.start_main_~i~0) (<= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ (* v_ULTIMATE.start_main_~i~0_36 4) |ULTIMATE.start_main_~#a~0.offset|)))))) (.cse4 (= |ULTIMATE.start_main_~#a~0.offset| 0)) (.cse11 (<= 100000 ~N~0)) (.cse12 (<= (+ ULTIMATE.start_main_~i~0 .cse13) (+ ULTIMATE.start_main_~j~0 1)))) (or (and (forall ((v_ULTIMATE.start_main_~j~0_103 Int) (v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse0 (let ((.cse2 (* ULTIMATE.start_main_~i~0 4))) (store (store (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| .cse2) ULTIMATE.start_main_~j~0) (+ |ULTIMATE.start_main_~#a~0.offset| 4 .cse2) v_ULTIMATE.start_main_~j~0_103))) (.cse1 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< (select .cse0 (+ .cse1 |ULTIMATE.start_main_~#a~0.offset|)) 0) (<= 0 (select .cse0 (+ .cse1 |ULTIMATE.start_main_~#a~0.offset| 8))) (< v_ULTIMATE.start_main_~k~0_62 2) (< v_ULTIMATE.start_main_~j~0_103 (+ ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~i~0)) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~k~0_62)))) (<= 4 ULTIMATE.start_main_~i~0) (<= (+ (select .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| 4)) 1) (select .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| 8))) .cse4 (<= 3 (select (store .cse3 (+ |ULTIMATE.start_main_~#a~0.offset| .cse5) ULTIMATE.start_main_~j~0) 12)) .cse6) (and .cse4 (<= 0 ULTIMATE.start_main_~i~0) (= ULTIMATE.start_main_~j~0 0) (<= ULTIMATE.start_main_~i~0 0) (<= (+ ULTIMATE.start_main_~i~0 100000) ~N~0)) (and .cse4 .cse7 (exists ((v_ULTIMATE.start_main_~i~0_117 Int)) (let ((.cse9 (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|)) (.cse10 (* v_ULTIMATE.start_main_~i~0_117 4))) (let ((.cse8 (select .cse9 (+ |ULTIMATE.start_main_~#a~0.offset| (- 4) .cse10)))) (and (<= (+ v_ULTIMATE.start_main_~i~0_117 .cse8) (+ (select .cse9 (+ |ULTIMATE.start_main_~#a~0.offset| .cse10)) 1)) (<= ULTIMATE.start_main_~i~0 (+ v_ULTIMATE.start_main_~i~0_117 1)) (<= (+ v_ULTIMATE.start_main_~i~0_117 (select .cse9 (+ |ULTIMATE.start_main_~#a~0.offset| .cse10 (- 8)))) (+ 2 .cse8)) (<= v_ULTIMATE.start_main_~i~0_117 4))))) .cse11 (<= ULTIMATE.start_main_~i~0 3) .cse6 .cse12) (and .cse4 .cse7 .cse11 (<= ULTIMATE.start_main_~i~0 2) .cse6 .cse12) (and .cse4 .cse11 (= ULTIMATE.start_main_~i~0 1) .cse12 (<= 0 ULTIMATE.start_main_~j~0)))))) [2021-10-20 05:43:32,549 INFO L857 garLoopResultBuilder]: For program point L17-4(lines 17 22) no Hoare annotation was computed. [2021-10-20 05:43:32,549 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-20 05:43:32,550 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2021-10-20 05:43:32,550 INFO L853 garLoopResultBuilder]: At program point L24-3(lines 24 25) the Hoare annotation is: (let ((.cse2 (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|))) (let ((.cse11 (<= 2 ULTIMATE.start_main_~k~0)) (.cse5 (<= ULTIMATE.start_main_~i~0 2)) (.cse10 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (.cse12 (exists ((v_ULTIMATE.start_main_~i~0_55 Int)) (and (<= ULTIMATE.start_main_~i~0 (+ v_ULTIMATE.start_main_~i~0_55 1)) (<= 1 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| (* v_ULTIMATE.start_main_~i~0_55 4)))) (<= v_ULTIMATE.start_main_~i~0_55 2)))) (.cse0 (<= (+ (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| 4)) 1) (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| 8)))) (.cse1 (= |ULTIMATE.start_main_~#a~0.offset| 0)) (.cse9 (<= 3 (select (store .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| (* ULTIMATE.start_main_~i~0 4)) ULTIMATE.start_main_~j~0) 12))) (.cse3 (exists ((v_ULTIMATE.start_main_~i~0_36 Int)) (and (<= 1 v_ULTIMATE.start_main_~i~0_36) (<= v_ULTIMATE.start_main_~i~0_36 1) (<= (+ v_ULTIMATE.start_main_~i~0_36 1) ULTIMATE.start_main_~i~0) (<= 0 (select (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ (* v_ULTIMATE.start_main_~i~0_36 4) |ULTIMATE.start_main_~#a~0.offset|)))))) (.cse4 (= ULTIMATE.start_main_~k~0 1))) (or (and .cse0 (<= ULTIMATE.start_main_~i~0 4) .cse1 (<= 3 (select .cse2 12)) .cse3 .cse4) (and .cse5 .cse3 .cse4) (and (<= ULTIMATE.start_main_~i~0 1) (<= 100000 ~N~0) .cse4) (let ((.cse6 (* ULTIMATE.start_main_~k~0 4))) (and (or (<= 0 (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| 8 .cse6))) (<= ULTIMATE.start_main_~i~0 (+ ULTIMATE.start_main_~k~0 2))) (<= 4 ULTIMATE.start_main_~i~0) .cse0 .cse1 (forall ((v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse7 (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|)) (.cse8 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< v_ULTIMATE.start_main_~k~0_62 (+ ULTIMATE.start_main_~k~0 1)) (<= 0 (select .cse7 (+ .cse8 |ULTIMATE.start_main_~#a~0.offset| 8))) (< (select .cse7 (+ .cse8 |ULTIMATE.start_main_~#a~0.offset|)) 0) (<= ULTIMATE.start_main_~i~0 (+ 2 v_ULTIMATE.start_main_~k~0_62))))) .cse9 (or (<= 0 (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| .cse6 4))) (<= ULTIMATE.start_main_~i~0 (+ ULTIMATE.start_main_~k~0 1))) .cse3 .cse10 (or (<= 0 (select .cse2 (+ |ULTIMATE.start_main_~#a~0.offset| .cse6))) (<= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0)))) (and .cse11 .cse12 .cse3 .cse10) (and .cse11 .cse5 .cse3 .cse10) (and (<= ULTIMATE.start_main_~i~0 0) .cse4) (and .cse12 .cse3 .cse4) (and (forall ((v_ULTIMATE.start_main_~j~0_103 Int) (v_ULTIMATE.start_main_~k~0_62 Int)) (let ((.cse13 (let ((.cse15 (* ULTIMATE.start_main_~i~0 4))) (store (store (select |#memory_int| |ULTIMATE.start_main_~#a~0.base|) (+ |ULTIMATE.start_main_~#a~0.offset| .cse15) ULTIMATE.start_main_~j~0) (+ |ULTIMATE.start_main_~#a~0.offset| 4 .cse15) v_ULTIMATE.start_main_~j~0_103))) (.cse14 (* v_ULTIMATE.start_main_~k~0_62 4))) (or (< (select .cse13 (+ .cse14 |ULTIMATE.start_main_~#a~0.offset|)) 0) (<= 0 (select .cse13 (+ .cse14 |ULTIMATE.start_main_~#a~0.offset| 8))) (< v_ULTIMATE.start_main_~k~0_62 2) (< v_ULTIMATE.start_main_~j~0_103 (+ ULTIMATE.start_main_~j~0 ULTIMATE.start_main_~i~0)) (<= ULTIMATE.start_main_~i~0 v_ULTIMATE.start_main_~k~0_62)))) .cse0 .cse1 .cse9 .cse3 .cse4)))) [2021-10-20 05:43:32,550 INFO L857 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-10-20 05:43:32,550 INFO L857 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-10-20 05:43:32,551 INFO L857 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2021-10-20 05:43:32,555 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:43:32,563 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,564 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,565 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,565 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,565 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,565 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,565 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,566 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,566 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,566 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,570 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,570 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,570 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,570 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,585 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,586 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,586 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,586 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,586 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,587 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,587 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,587 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,587 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,588 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,589 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,589 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,589 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,589 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,594 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,596 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,596 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,596 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,597 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,597 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,597 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,597 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,598 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,598 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,598 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,598 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,605 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,608 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,609 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,609 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,609 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,609 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,610 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,610 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,610 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,610 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,611 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,611 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,611 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,611 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,612 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,612 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,612 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,612 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,613 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,614 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,614 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,614 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,614 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,614 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,615 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,618 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:43:32 BoogieIcfgContainer [2021-10-20 05:43:32,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:43:32,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:43:32,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:43:32,623 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:43:32,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:39:16" (3/4) ... [2021-10-20 05:43:32,626 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-20 05:43:32,635 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-20 05:43:32,636 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-20 05:43:32,636 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-20 05:43:32,636 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-20 05:43:32,659 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((forall v_ULTIMATE.start_main_~j~0_103 : int, v_ULTIMATE.start_main_~k~0_62 : int :: (((unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0 || 0 <= unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || v_ULTIMATE.start_main_~k~0_62 < 2) || v_ULTIMATE.start_main_~j~0_103 < j + i) || i <= v_ULTIMATE.start_main_~k~0_62) && 4 <= i) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) || ((((a == 0 && 0 <= i) && j == 0) && i <= 0) && i + 100000 <= N)) || ((((((a == 0 && unknown-#memory_int-unknown[a][a + -8 + i * 4] + i <= 2 + unknown-#memory_int-unknown[a][a + -4 + i * 4]) && (\exists v_ULTIMATE.start_main_~i~0_117 : int :: ((v_ULTIMATE.start_main_~i~0_117 + unknown-#memory_int-unknown[a][a + -4 + v_ULTIMATE.start_main_~i~0_117 * 4] <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_117 * 4] + 1 && i <= v_ULTIMATE.start_main_~i~0_117 + 1) && v_ULTIMATE.start_main_~i~0_117 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_117 * 4 + -8] <= 2 + unknown-#memory_int-unknown[a][a + -4 + v_ULTIMATE.start_main_~i~0_117 * 4]) && v_ULTIMATE.start_main_~i~0_117 <= 4)) && 100000 <= N) && i <= 3) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1)) || (((((a == 0 && unknown-#memory_int-unknown[a][a + -8 + i * 4] + i <= 2 + unknown-#memory_int-unknown[a][a + -4 + i * 4]) && 100000 <= N) && i <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1)) || ((((a == 0 && 100000 <= N) && i == 1) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1) && 0 <= j) [2021-10-20 05:43:32,660 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8] && i <= 4) && a == 0) && 3 <= unknown-#memory_int-unknown[a][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1) || ((i <= 2 && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1)) || ((i <= 1 && 100000 <= N) && k == 1)) || ((((((((((0 <= unknown-#memory_int-unknown[a][a + 8 + k * 4] || i <= k + 2) && 4 <= i) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && (forall v_ULTIMATE.start_main_~k~0_62 : int :: ((v_ULTIMATE.start_main_~k~0_62 < k + 1 || 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0) || i <= 2 + v_ULTIMATE.start_main_~k~0_62)) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (0 <= unknown-#memory_int-unknown[a][a + k * 4 + 4] || i <= k + 1)) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond)) && (0 <= unknown-#memory_int-unknown[a][a + k * 4] || i <= k))) || (((2 <= k && (\exists v_ULTIMATE.start_main_~i~0_55 : int :: (i <= v_ULTIMATE.start_main_~i~0_55 + 1 && 1 <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_55 * 4]) && v_ULTIMATE.start_main_~i~0_55 <= 2)) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond))) || (((2 <= k && i <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond))) || (i <= 0 && k == 1)) || (((\exists v_ULTIMATE.start_main_~i~0_55 : int :: (i <= v_ULTIMATE.start_main_~i~0_55 + 1 && 1 <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_55 * 4]) && v_ULTIMATE.start_main_~i~0_55 <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1)) || ((((((forall v_ULTIMATE.start_main_~j~0_103 : int, v_ULTIMATE.start_main_~k~0_62 : int :: (((unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0 || 0 <= unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || v_ULTIMATE.start_main_~k~0_62 < 2) || v_ULTIMATE.start_main_~j~0_103 < j + i) || i <= v_ULTIMATE.start_main_~k~0_62) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1) [2021-10-20 05:43:32,670 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:43:32,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:43:32,671 INFO L168 Benchmark]: Toolchain (without parser) took 257135.72 ms. Allocated memory was 90.2 MB in the beginning and 209.7 MB in the end (delta: 119.5 MB). Free memory was 52.9 MB in the beginning and 155.5 MB in the end (delta: -102.6 MB). Peak memory consumption was 16.0 MB. Max. memory is 16.1 GB. [2021-10-20 05:43:32,674 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory is still 68.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:43:32,675 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.12 ms. Allocated memory is still 90.2 MB. Free memory was 52.7 MB in the beginning and 67.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:43:32,675 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.77 ms. Allocated memory is still 90.2 MB. Free memory was 67.6 MB in the beginning and 66.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:43:32,675 INFO L168 Benchmark]: Boogie Preprocessor took 41.33 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 65.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:43:32,675 INFO L168 Benchmark]: RCFGBuilder took 374.99 ms. Allocated memory is still 90.2 MB. Free memory was 64.8 MB in the beginning and 53.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-20 05:43:32,675 INFO L168 Benchmark]: TraceAbstraction took 256330.42 ms. Allocated memory was 90.2 MB in the beginning and 209.7 MB in the end (delta: 119.5 MB). Free memory was 53.0 MB in the beginning and 157.6 MB in the end (delta: -104.6 MB). Peak memory consumption was 114.2 MB. Max. memory is 16.1 GB. [2021-10-20 05:43:32,676 INFO L168 Benchmark]: Witness Printer took 48.07 ms. Allocated memory is still 209.7 MB. Free memory was 157.6 MB in the beginning and 155.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:43:32,676 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 90.2 MB. Free memory is still 68.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.12 ms. Allocated memory is still 90.2 MB. Free memory was 52.7 MB in the beginning and 67.6 MB in the end (delta: -15.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.77 ms. Allocated memory is still 90.2 MB. Free memory was 67.6 MB in the beginning and 66.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.33 ms. Allocated memory is still 90.2 MB. Free memory was 66.1 MB in the beginning and 65.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 374.99 ms. Allocated memory is still 90.2 MB. Free memory was 64.8 MB in the beginning and 53.4 MB in the end (delta: 11.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 256330.42 ms. Allocated memory was 90.2 MB in the beginning and 209.7 MB in the end (delta: 119.5 MB). Free memory was 53.0 MB in the beginning and 157.6 MB in the end (delta: -104.6 MB). Peak memory consumption was 114.2 MB. Max. memory is 16.1 GB. * Witness Printer took 48.07 ms. Allocated memory is still 209.7 MB. Free memory was 157.6 MB in the beginning and 155.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 256204.5ms, OverallIterations: 12, TraceHistogramMax: 6, EmptinessCheckTime: 16.5ms, AutomataDifference: 159342.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 58315.6ms, InitialAbstractionConstructionTime: 10.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 85 SDtfs, 287 SDslu, 484 SDs, 0 SdLazy, 1539 SolverSat, 186 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 29243.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 624 GetRequests, 300 SyntacticMatches, 17 SemanticMatches, 307 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2939 ImplicationChecksByTransitivity, 151914.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=11, InterpolantAutomatonStates: 133, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 63.6ms AutomataMinimizationTime, 12 MinimizatonAttempts, 84 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 32 NumberOfFragments, 909 HoareAnnotationTreeSize, 2 FomulaSimplifications, 13330 FormulaSimplificationTreeSizeReduction, 55.1ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 2688 FormulaSimplificationTreeSizeReductionInter, 58253.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 90.5ms SsaConstructionTime, 459.8ms SatisfiabilityAnalysisTime, 15106.5ms InterpolantComputationTime, 347 NumberOfCodeBlocks, 347 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 482 ConstructedInterpolants, 56 QuantifiedInterpolants, 6040 SizeOfPredicates, 82 NumberOfNonLiveVariables, 1106 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 32 InterpolantComputations, 2 PerfectInterpolantSequences, 24/570 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant [2021-10-20 05:43:32,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,705 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,708 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,709 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,715 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,715 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,715 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,715 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,715 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,715 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,715 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,715 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,719 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,719 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,719 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,719 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_117,QUANTIFIED] [2021-10-20 05:43:32,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,722 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] Derived loop invariant: (((((((((forall v_ULTIMATE.start_main_~j~0_103 : int, v_ULTIMATE.start_main_~k~0_62 : int :: (((unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0 || 0 <= unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || v_ULTIMATE.start_main_~k~0_62 < 2) || v_ULTIMATE.start_main_~j~0_103 < j + i) || i <= v_ULTIMATE.start_main_~k~0_62) && 4 <= i) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) || ((((a == 0 && 0 <= i) && j == 0) && i <= 0) && i + 100000 <= N)) || ((((((a == 0 && unknown-#memory_int-unknown[a][a + -8 + i * 4] + i <= 2 + unknown-#memory_int-unknown[a][a + -4 + i * 4]) && (\exists v_ULTIMATE.start_main_~i~0_117 : int :: ((v_ULTIMATE.start_main_~i~0_117 + unknown-#memory_int-unknown[a][a + -4 + v_ULTIMATE.start_main_~i~0_117 * 4] <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_117 * 4] + 1 && i <= v_ULTIMATE.start_main_~i~0_117 + 1) && v_ULTIMATE.start_main_~i~0_117 + unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_117 * 4 + -8] <= 2 + unknown-#memory_int-unknown[a][a + -4 + v_ULTIMATE.start_main_~i~0_117 * 4]) && v_ULTIMATE.start_main_~i~0_117 <= 4)) && 100000 <= N) && i <= 3) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1)) || (((((a == 0 && unknown-#memory_int-unknown[a][a + -8 + i * 4] + i <= 2 + unknown-#memory_int-unknown[a][a + -4 + i * 4]) && 100000 <= N) && i <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1)) || ((((a == 0 && 100000 <= N) && i == 1) && i + unknown-#memory_int-unknown[a][a + -4 + i * 4] <= j + 1) && 0 <= j) - InvariantResult [Line: 24]: Loop Invariant [2021-10-20 05:43:32,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,725 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,728 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,728 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,728 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,728 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,728 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,728 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,729 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,729 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,729 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,729 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,729 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,729 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,729 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,730 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,730 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,730 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,730 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,730 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,730 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,730 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,735 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,735 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,735 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,735 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,736 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,736 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,736 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,736 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,736 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,737 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,737 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,737 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,743 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,744 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,745 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,746 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,749 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,750 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,751 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,752 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_55,QUANTIFIED] [2021-10-20 05:43:32,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,753 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,754 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,755 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~j~0_103,QUANTIFIED] [2021-10-20 05:43:32,756 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~k~0_62,QUANTIFIED] [2021-10-20 05:43:32,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] [2021-10-20 05:43:32,757 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_~i~0_36,QUANTIFIED] Derived loop invariant: ((((((((((((unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8] && i <= 4) && a == 0) && 3 <= unknown-#memory_int-unknown[a][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1) || ((i <= 2 && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1)) || ((i <= 1 && 100000 <= N) && k == 1)) || ((((((((((0 <= unknown-#memory_int-unknown[a][a + 8 + k * 4] || i <= k + 2) && 4 <= i) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && (forall v_ULTIMATE.start_main_~k~0_62 : int :: ((v_ULTIMATE.start_main_~k~0_62 < k + 1 || 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0) || i <= 2 + v_ULTIMATE.start_main_~k~0_62)) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (0 <= unknown-#memory_int-unknown[a][a + k * 4 + 4] || i <= k + 1)) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond)) && (0 <= unknown-#memory_int-unknown[a][a + k * 4] || i <= k))) || (((2 <= k && (\exists v_ULTIMATE.start_main_~i~0_55 : int :: (i <= v_ULTIMATE.start_main_~i~0_55 + 1 && 1 <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_55 * 4]) && v_ULTIMATE.start_main_~i~0_55 <= 2)) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond))) || (((2 <= k && i <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && !(0 == cond))) || (i <= 0 && k == 1)) || (((\exists v_ULTIMATE.start_main_~i~0_55 : int :: (i <= v_ULTIMATE.start_main_~i~0_55 + 1 && 1 <= unknown-#memory_int-unknown[a][a + v_ULTIMATE.start_main_~i~0_55 * 4]) && v_ULTIMATE.start_main_~i~0_55 <= 2) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1)) || ((((((forall v_ULTIMATE.start_main_~j~0_103 : int, v_ULTIMATE.start_main_~k~0_62 : int :: (((unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a] < 0 || 0 <= unknown-#memory_int-unknown[a][a + i * 4 := j][a + 4 + i * 4 := v_ULTIMATE.start_main_~j~0_103][v_ULTIMATE.start_main_~k~0_62 * 4 + a + 8]) || v_ULTIMATE.start_main_~k~0_62 < 2) || v_ULTIMATE.start_main_~j~0_103 < j + i) || i <= v_ULTIMATE.start_main_~k~0_62) && unknown-#memory_int-unknown[a][a + 4] + 1 <= unknown-#memory_int-unknown[a][a + 8]) && a == 0) && 3 <= unknown-#memory_int-unknown[a][a + i * 4 := j][12]) && (\exists v_ULTIMATE.start_main_~i~0_36 : int :: ((1 <= v_ULTIMATE.start_main_~i~0_36 && v_ULTIMATE.start_main_~i~0_36 <= 1) && v_ULTIMATE.start_main_~i~0_36 + 1 <= i) && 0 <= unknown-#memory_int-unknown[a][v_ULTIMATE.start_main_~i~0_36 * 4 + a])) && k == 1) RESULT: Ultimate proved your program to be correct! [2021-10-20 05:43:32,983 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-20 05:43:33,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_858896f5-95e6-4c87-aeec-717b1805f6a7/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...